It's not a poor career choice if he wouldn't be happy, doesn't think he could settle at the Club, doesn't feel he would get a regular start and so on. I doubt the lad is pratted and cheesy as it is (and it is) you can't buy happiness. He clearly likes it up here and I think Rangers would suit him much better......wouldn't like to see it though.
I would imagine the wages at Blackpool (parachute payments from EPL for the next couple of years) would be better than what Craig Whyte/Rangers have on the table.
Must be down to football, family, and chance to win things rather than financial.
Again, if he goes to Rangers.