What would you have to do to make the gym obsolete?

Well I don't use a gym at all.

Equipment I consider must have:
Pullup Bar
Mat

Equipment that I consider beneficial but not critical:
Parallettes
2 solid chairs (for dips)
Some dumbells (for some assistance exercises)
Resistance bands (for rehab/prehab/mobility exercises)
Treadmill / other cardio machine (warmup/cooldown, and for days when it is too ___ to run outside)

Squat rack
adjustable bench (combined with squat rack, makes a bench press)
pull-up / dip station
DBs (going from 20 to 110 lbs, heh)

To those of you who go to a gym to work out because doing a basic at-home program like P90X or something else doesn't cut the mustard:

What equipment would YOU have to purchase for your home in order to obsolete your gym membership? I was thinking long and hard about it myself and I realized that, the way I use a gym, I could completely obsolete it by purchasing the following equipment:

Bench
Adjustable dumbbells
Kettlebells

And that's it.

Stuff that I don't already have that I would need...

1. Full Power rack with adjustable pegs
2. Two full-sized olympic bars
3. A nice set of bumper plates
4. Adjustable inclining & declining bench, probably 2 benches
5. Adjustable plate loaded pulley system
6. Chin-up & Dip station
7. Adjustable dumbbells, up to 150lbs
8. 45-degree support for back hyper extensions
9. Glute-ham raise machine
10. Rubber mats to protect the floor
11. Stairmill or a good elliptical would be really nice for when it's too hot or cold for outdoor cardio

That would be my dream home gym and I would never have to set foot in a commercial gym again. Unfortunately I think my dream gym would cost me about $10k. Of course I could some of it cheaper but if we're talking "dream" then I'm thinking best of the best, EliteFTS, Eleiko, etc.

I'm not strictly the right person to answer, but here are my thoughts:

I've never been a 'gym' person. I've always purchased what I've wanted and done workouts that involve little or no equipment. Over the past month, I've been looking into the gym for my winter runs. I've really got into running, and it's become my 'thing'. I don't have space for a treadmill at home, so I was weighing up gym membership to allow me to run on very cold and icy days.

Then, my fiance got into racquet sports. He's asked if I'll get involved a bit, and so far we've played tennis in a public outdoor court and have played squash at our local leisure centre. I've also been saying for a year or two that I'd love to get into swimming, but didn't want to go alone. This week, we went for the first time and both really enjoyed it.

So, I've got a new schedule in place. Three days of running, one day of 30DS, two days of swimming and one day doing whatever my fiance wants to do (usually a racquet sport). I'm going to pay for the swimming pool and squash courts as needed all year, and in winter I'll take out a joint membership for the pool and gym. The gym will only be used for the treadmill.

An elliptical, a bench and some dumb bells, really. I used to really be into the spin classes, but now my work schedule conflicts with them... otherwise, I'd need those stands for a regular ike to make it stationary. I know I could do without the gym, but I find the elliptical the best way to torch a bunch of calories.

Move a more moderate climate.

Too much, I need the variety of lots of weights/benches/machines/cardio

I also need the change in scene to motivate me and someone to spot helps too - tried the home gym in front of a TV and it doesnt work for me

To those of you who go to a gym to work out because doing a basic at-home program like P90X or something else doesn't cut the mustard:

What equipment would YOU have to purchase for your home in order to obsolete your gym membership? I was thinking long and hard about it myself and I realized that, the way I use a gym, I could completely obsolete it by purchasing the following equipment:

Bench
Adjustable dumbbells
Kettlebells

And that's it.

I have one of those all in one dealios, you can do the leg extensions and the fly extensions etc etc. I got it one sale at walmart for 150. I use it, but I use my freeweights (with adjustable plates), barbells and bench more.

treadmill..... if only i had the space

What would i absolutely HAVE to have? Probably nothing.

What would i want? Dumbbells from 5-50 lbs. Plates @ 5, 10, 25 and 45lbs, for a total of about 600lbs. A squat cage. A captain's chair with chin-up/pull-up grips and dip bars (got this on order). A full range of cable pulls. A heavy duty incline/decline bench. A couple of olympic bars.

With what i already have, that would probably make me okay with not going to the gym.

Edit to add: what i already have - treadmill, skier, lightweight bench, light dumbbells, weighted jump rope, weighted hoop, 2 mats, 4 stability balls of various size, a BOSU, military press, biceps curl machine, seated chess press, abductor/adductor machine.