I had tried to get some info from some of the more knowledgeable on here regarding Nong Khai, but they never responded to my PMs. After looking at their post count, they probably aren't regular readers/posters here, so no harm.
We stayed in a small guesthouse near the Mekong. Only 400 baht a night -- AC and hot water and very clean. Friendly and helpful owners. What else do you need on a trip? They also had wifi, but we didn't need it for the short time we were planning to stay. It was named the Khiangkhong Guesthouse. Had a covered, secluded area for us to park our big bikes, which was also a plus.
Bars along the roadway near the Market adjacent to the Mekong River were hopping. Lots of girls on a Friday night. We took four of them out with us as guides, and they showed us everywhere there is to go -- including some other bars in town and karaoke places. Found some discos near the Riverside Hotel and spent quite a bit of time in there. Prices were reasonable, music was great, and we were the only foreigners in there except for one other guy who was having a good time near the stage. Place was packed, but not so full that you couldn't move about. Service was also good, but the ladies were making sure that our drinks stayed fresh. Bar Nana is the name of the disco.
Left there about 2am. Just in time, as the local police were riding into the parking lot with red lights going, so it must have been time to close. We were fine. No problems.
We had heard rumors about Lao girls in a certain part of town. Our tuktuk driver took us straight to them (those guys know everything). There's a hotel about a half block from the market that houses them all. Didn't partake, but we know where they are now.
Next morning, had breakfast at the Pantawee Hotel on Hak Sok Road. I had eaten breakfast there before. Very good. Staff speaks English well and are very helpful.
We will go back.
Best of luck and a thread with over 3000 views,must be a demand oop there 
