1992 Skylark transmission repair

My wife has a '92 Buick Skylark. It's transmission is on its last leg. I'm debating about replacing the tranny or replacing the car. The car is in excellent condition. It has been driven by a little old lady (er...rather my very young wife :->) back and forth to the local Children's hospital and home. She parked in a garage at work and home. It has about 92K miles on it. To replace the transmission will cost about $3,000. I priced it at the dealership and a couple of other transmission places and they were all within about $300 of each other. I don't have the tools, time or experience to tear a front wheel drive apart and deal with a wife without transportation in the meantime, so if this is worth doing, I really can't do it myself.

Anyone have any opinions about this? In one respect I hate to shoot a car that is in otherwise very good condition. For an Ohio car, it really is in great condition. The paint looks almost new as does the interior. The only nags I have are 1. It has a small oil leak somewhere that I haven't found,

1. The AC ain't the greatest (but the in-laws have had about a dozen Buicks and every one had bad AC, so I think it's a "feature"), and 3. The car won't fit a big guy like me without a big crick in his neck and back.

Is it worth selling in its current condition? Would it even make sense to part it and sell the good stuff (I turn my 6 yo loose with a wrench and he'll do what he did to my first Pontiac and fill the garage with all the parts)? I've had very bad luck with transmission "repair"....they've never been right once I've gotten them back. Replacing would make me feel better, but I'm not sure the car is worth the kind of money it will cost for the age/value of the car.

Thanks for any suggestions.

Scott