I'm soon to be in the market for a high end set....in my research I've settled on these 3 sets. Each with their own unique sound I really like, but one factor that I haven't looked into yet is it's re-sale value. I was wondering which one would hold it the best were I to get a serious case of GAS and want to trade up.

they are:

DW Performance Series

Yamaha Live/Oak Custom

Mapex Saturn IV

any opinions would be awesome