I would have bought a Prius over the CRZ in a heartbeat if not for the resale value.
It seems like for like (mileage, year) used CRZs are not all that valuable in comparison.
$8k for my CRZ vs. $14-16k going rate for a similarly used Prius... Saved a ton and I can deal with a ****ty ride and inferior MPGs of the Honda. The other good part of the trade-off is the 6 spd. CRZ is much more fun to drive but not nearly as practical.