Depends.
Some of the higher end pro gear is also harder to resell, as the market is mostly looking for the consumer stuff (this applies less to the MBP, but probably somewhat to the 17"ers.)
Lots of people on here have reported having trouble selling their PowerMacs and MacPros -- easier to sell an iMac and MB, I'd assume.
Again, just MHO.
Some of the higher end pro gear is also harder to resell, as the market is mostly looking for the consumer stuff (this applies less to the MBP, but probably somewhat to the 17"ers.)
Lots of people on here have reported having trouble selling their PowerMacs and MacPros -- easier to sell an iMac and MB, I'd assume.
Again, just MHO.