Going to Oklahoma

I'm going to a 2.5-day conference next week in Oklahoma City, so Robin and I are taking the whole week off for a little Oklahoma vacation, most of which we will probably spend in Tulsa. (Yes, we are driving. It's about a ten-hour trip to Tulsa via Oklahoma City.) Things to see in Oklahoma:
* Airstream trailers (those silvery bubble-shaped ones)
* Art deco architecture
* Frank Lloyd Wright architecture
* Frankoma pottery
* parks and stuff

Things not to see in Oklahoma:
* Lake Texoma (I've been there enough on company picnics; I suppose it could be fun somehow, though)
* my birthplace (nothing to see, wrong direction)

Usually I do lots of research in advance of this sort of trip, but I took a while deciding whether I wanted to go to this conference and I've just generally been worrying about things closer to home (quest for better job, better house, better health).

Anyone want to share any experiences from Oklahoma?

I once went to school there for two weeks between moves when I was a kid. We really thought we were going to be there for a while. Mom showed me the house we lived in when I was born. Then we moved to Houston where it immediately snowed six inches. Later that same winter, when it snowed two inches, they didn't close everything like they normally would because compared to the earlier snowfall, this was nothing.

Any recommendations or anti-recommendations?