Aholda,
I think your 99 corolla is a superior vehicle in terms of maintenance cost, and that 95ls400bob is correct in his evaluation - you need to be able to work on these vechicles DIY or they will eat you alive. I mean, a $6k purchase for the LS is good, but you take it to a dealer and they'll find another $6k (minimum) in maintenace.
These are reliable, yet expensive cars - they are expensive to maintain unless DIY.
Powerful, quiet, smooth, and full of class is why we have them