I think the issue there would be a player can't be registered with more than 2 clubs in one season - I'm guessing we believe/know that Glenn is registered with Bmuff, obviously registered with us, so shouldn't be able to play for a 3rd club this season.
£3m for a decent back up striker in the PREM who already knows the club very well is an absolute bargain?!? I don't really care what Bmuff or Palace think of him, why should we? He's massively settled here and suits our system down to the ground.
I think at 34 he'd be worth a 1 year contract as back up striker, we'd still need to invest big in 1-2 names ahead of him, but he's a canny, intelligent player who'd be worth bringing on for 20-30 mins in a tight game.
Surely we wouldn't shoot ourselves in the foot twice, yet again offer him a pathetic deal and watch him go somewhere else and bang them in at the Amex against us?