My suggestion is if you have something that is really reliable, then by all means stick with it. My GL was really reliable when I let my bro have it and I went with something else. Well that something else eventually caused me enough problems that I ended up with the SVTC, which has had enough problems of its own. Meanwhile, the GL my brother has goes to the shop for oil changes only. It hasn't been in for anything mechanical since 12k, and it has 66k on it now. So, you just have to balance reliability and fun with the car. I have more fun with the SVT than I would with the GL, but the reliability comes into question. I'd rather have the SVT, but the GL would be a lot more convenient and cheaper. It's just checks and balances.
As for resale value, I have no idea, but I can't see getting more than $5k for it, maybe more if you sell it yourself.
