Bill,
I know I'm serious about A tuner. Just haven't decided which one. From all the research I've done, I'm leaning toward HPT. Most of my reasons are specific to me. I like software updates, I'm really only concerned with unlocking 2 or 3 PCM's, future vehicle support, and the list goes on.
I'm not saying I wouldn't like or use DHP, but I would have to get a crazy good deal in it. So good that no one is likely to sell it at the price I'm willing to pay.
I do like seeing/reading the debate on why people like or dislike a certain tuner. Gives an outsider some insight...
