1. Khon Kaen is far from ulu. After Bangkok, Chiangmai, Pattaya it’s probably the next most developed city in Thailand. It’s got all the amenities a modern city has. As a matter of fact an elevated dual way train from Korat to Khon Kaen is almost completed will be expecting to start operation end of the year. Also a light rail system for the city should start construction end of this year.
2. There are many more expensive hotels in Khon Kaen so $64 is considered inexpensive (I didn't say cheap), moreover for a screw salesman this is a rare luxury as normally my boss allow me to live in 750 baht ($31) salesman motel (other staff 500-600 baht) and breakfast consist of only boiled rice with bits of minced pork.
Yes, Khon Kaen is a happening place. It is one of the big 4 of Isan, alongside Korat, Ubon Ratchathani and Udon Thani. Froggy, between your favourite pastime of makaning, you should check out the museum.... very informative.