Generally speaking, I think owners are okay (on some level) with the idea of "buying picks". Third-party teams retained on trade for mere 4th/5th round picks. Every year, teams take on low/zero value contracts for payment. Hell, we did it what 3-4 times last year alone?
The idea with Nurse would be, if you can get a 2nd to take him on, then let in improve under better circumstances, retain $2mil, you can probably get an extra 2nd and a prospect out of it. So you're out the $9.25mil+ until you trade him, then and the $2mil after that. Seems like a reasonable deal to add 2 2nds and a prospect.
On the back end, it does help with the cap floor. I don't know if anyone has looked at our cap structure in the coming years, but unless we start bringing in some cap, we are going to be in trouble. San Jose has to go out and get Price to get above the floor. That's why I'm not shy about Nurse AND EP40 both coming in. Sometimes it's not purely about on-ice performance.