That's always been the appeal.of saints rowover other sandbox games like GTA or true crime and even the getaway.
Its not serious enough to ruin the pure fun.
As opposed to the funniest thing in GTA being that you can kill s holler after sex for a full refund
They are actually adding a bunch of new fun stuff for GTA V
So I'd say GTA V is gonna be even more fun, and with a good story to top Saint's Row
/fanboy rant