The Xterra is a slightly underpowered truck. With a supercharger it's a slightly less slightly underpowered truck.

Get what you want. If you don't want a slightly underpowered truck, get an "X" with a supercharger. If you don't want a slightly less slightly underpowered truck, go down the road to the Dodge dealer and get a Durango with a V-8.

Just know what you're getting before you buy (read: Research a lot and test drive the hell out of one). And don't just drive it around the block. Make sure the salesman lets you "take it for a spin" for a couple of hours, and drive it on whatever terrain you'll be driving it on regularly.

If you spend most of your time on the freeway in "cruise," take it out for a 30-40 mile "spin" on the freeway. If you regularly drive through mountains, make sure you pull a really good hill or two on that test drive.

Just know what you're getting before you plunk down 20K plus and you won't regret it later.