First off I'll say that Randy is a great guy and a great ambassador for the sport. He's been a great champion for the UFC at the Heavyweight division and the Light Heavyweight division, BUT I think it is ridiculous to say that Fedor is the only fight out there for him.
Let's be honest, Randy while a great fighter did not deserve a title shot against Sylvia. The UFC gave it to him and while it benefited the UFC(gave them a very marketable HW champion) it benefited Randy just as much. If he didn't get the opportunity to fight for the belt I don't think Xtreme Couture is as big as it is now and neither is the affliction brand of clothing. Randy has a lot to thank the UFC for and vice versa. I think walking away like this is fairly bush league.
Moreover who has Couture beaten at the HW division during this current title reign? Tim Sylvia and Gabriel Gonzaga. Not exactly the cream of the crop of the heavyweight division. I think it's a joke to say that Fedor is the only legit fight out there for him. Big Nog was the champion of PRIDE for a long long time. I mean Nogueira has 4 losses, 2 against Fedor, 1 against Barnett, and 1 against Dan Henderson. How is he not a legitimate opponent for Randy?