Yeah, I'm sure the upgrade in engine and interior space would be totally worth it, but you'd probably take a pretty serious financial hit, too! Although Wranglers don't seem to depreciate nearly as much as other vehicles, the first year or two are the worst; you'd also have to pay sales tax, doc fees, registration fees, etc. all over again. Then again, these vehicle purchases are rarely based on rational decisions alone: only you can decide if the cost of the swap is acceptable in the long run.
Good luck, either way!