Khon Kaen is a good mix of old and new. You can get KFC and Pizza or you can eat noodles and rice from street vendors. Software and DVDs are available at the mall or you can shop at the open markets. Small guest houses, intermediate hotels and a 5-star accommodation are available.
Nightlife can be found but dont expect it be comparable to Pattaya or Bangkok. There are a few expat bars near the Sofitel Hotel and a few Thai clubs scattered throughout the city.
Transportation around the city is easy as the Baht Buses are color-coded. Baht buses are just pick-up truck with seats in the back and cost about 25 cents for a ride. The have set routes and maps are available that display the routes. You just need to figure out where you want to go and find the correct color and hop on.
Day time activities for me were shopping and sightseeing. I spent lots of time visiting some of the most beautiful temples in all of Asia. One in particular is located in the heart of the city; right along side the citys lake (Buun Kaen Nakorn). The temple (Wat Nong Wang Muang) is 9 stories tall and each floor has a mini-museum with artifacts from ancient Thailand. Music...