As for me, I think I'll likely wind up with another LS mainly because I'm very impressed with the drive, feel and quality of the car. It will be a bit before I buy a another one however, as I only have 45k miles on my 96 LS and based on what I'm reading here, one can drive these things up to 200K+ miles without a problem. It will take me 8-10 years to run up that sort of mileage, plus I'm the type that normally keeps my cars for a long time.
As to roominess, I'm fine at 6'1", 260 lbs. Blake, I think you need to show everyone the picture you posted with your legs up to the dash for everyone to appreciate your problem with the legroom.