I was in Vegas with my K-r in the winter of this year. There were quite a few people with cameras and a few with tripods. Saw a guy with one of those mini tripods and he was setting it up creatively on walls and other structures. I stuck with hand held shooting on the strip because i had a beer in my hand so couldn't easily carry a tripod.
The good news with the K-r and K-30 is that high iso noise is quite low, so dont be afraid to use high iso settings.
I shoot everything in raw and put all my pics through dxo software. The high iso shots do get softened up, but any high iso noise gets cleaned up nicely.
18mm 1/8s f4.5 iso3200
18mm 1/13s f8 iso1600
18mm 1/30s f5.6 iso3200
DA55-300 @ 70mm with tripod 15s f8 iso100