Denver is pure heaven for me! It's a 19 hour drive and well worth every mile! Cost of a table isn't bad, and lodging and eats have plenty of choices, so still reasonable.
I stopped going to Reno before the fiasco that caused the Big Reno Show to move away from the Grande Sierra. It wasn't a bad show, just not a great show.
Denver is nice because of the size at around 700-800 tables, and it's well regulated, so you don't see all the crap that Reno show has. Plus as mentioned above, I enjoy seeing friends there each year.