That's a fair point. But as the years go on, his value diminishes bit by bit. He's getting older, more broken down, had a DUI as recently as a couple of years ago, etc.
One or two nostalgia draws is a good idea, but I really don't want AEW to become TNA or even modern WWE and go to that well too often.
Jericho and maybe one other would be perfect as far as old-timers go. Everyone else should be a mix of hot indy acts (Elite, ROH, etc.), international draws (NJPW), strategic ex-WWE signings (Pac and perhaps Ambrose, yes; Alberto, no) and new homegrown stars.
To be fair, it seems like that's exactly what AEW is doing.