I'd think about it real hard or sleep on it for several weeks. In the end you'll make the decision and you will choose what makes you happy. I've been there going crazy on mods...good thing gas prices went up because I almost spent over 3 grand on a TRD Supercharger, and many say the SC for the 1st Gen Tundra was not without issue.
I've had the same thoughts on trading my Tundra for the X-runner. I still like driving sporty vehicles and I'd love to load supplies and stuff on a lower truck bed. Only a few things that keep me from gettting the X-runner, rear seating is not so generous, I think it comes in manual tranny only, and the gas mileage won't be any better. Instead, I may trade my old 02 Nissan Maxima for possibly a sporty-ish car instead; 350Z, G-Coupe, IS350, or BMW 335I TT.
Good luck!
