Hogan isn't in TNA because WWE didn't offer him a good enough deal. WWE bends over backwards for that guy. If he had approached them about a deal, they would have made it. Hogan went to TNA because he saw some in them, and wanted to manage it and see how far he can take it. He's not there to wrestle. If he wrestles, he's trying to get them numbers. He's still one of the greatest on the mic, and he's going to draw more than Hardy because he's Hulk Hogan. He's a pop-culture icon.
Ric Flair is in TNA because he's bound to Hogan for a few years. TNA and WWE dont' market to the same audience, which is why TNA might succeed in what they're trying to do. They have found their place in the hardcore fans and people who prefer action over drama.
Hogan was the answer. Do you think that if Jeff Hardy just went to TNA and Hogan didn't, they would be in the same place? Hogan has brought Jeff, Flair, Bishoff, Hall, Pac, RVD, and kept Sting from retiring. He's the answer because he's boss they need.