I have 3 japanese Super Street Fighter II X ‘B’ boards for sale. I will be putting them on ebay as soon as I replace the suicide battery (this weekend), but wanted to give SRK’ers first shot. Asking $130 plus $15 for shipping, each. I will be ebaying for $129.99 starting, and $149.99 buy it now, plus shipping. Contact me via PM if interested. Pics can be provided upon request.
Ebay listing will be delayed to the end of this week, as I am waiting on replacement suicide batteries. The above offer will stand, for SRK members, until then. PM if interested. 
I still have one of these available. Brand new suicide battery, with about 26000 plays on the play counter. $145 shipped. PM me if interested.