>--if Trump doesn't get the nod, there is still a chance he would run as independent (assuming that he even really wants to be president)
>
>I could be wrong and he really thinks he would make a good president. But I think I know why he runs........ego and the opportunity to spout.

I would assume that his ego and his need for attention is a big part of it.

>I don't think he'll pull a Monte Brewster ("This was all a big joke") but my nightmare vision s that he actually wins and pulls a Robert Redford ("What do I do now" - The Candidate)

My guess is that he's more interested in running in the election - or possibly even winning the election - than he is in taking office. On the off-chance that he did win the election, I wouldn't be shocked at all for him to say "oh...never mind...". ..but I do not see him winning. If push came to shove I would suspect that the Electoral College would prevent it, even if he won the popular vote. There is no federal law that requires electors to vote as they have pledged, and a lot of states don't have any laws that require them to vote a certain way.