I think he got as big as he wanted to be. Was NWA world champion before the national expansion and then spent the rest of his career moving place to place as to not overstay his welcome. Whether it be WWE,AWA,WCW,ECW,AJPW,NJPW,ROH,FMW,PWG or random shows on the independents he was always somewhere.
Also every hogan interview always has at least something new because he's always making shit up. One of the biggest liars in wrestling history brother.