I have 11 classic Yomega yo-yos (9 x-brains and 2 brains) for sale on eBay currently. Starting bid is $50 with a Buy It Now of $150. Taking a chance with them to see what happens. They are in original package. The X-brains have 1999 printed on the yo-yos. The packages have some shelf and time wear but are in overall good condition. Some have store price stickers on them. Link below:
The auction ends in 4 hours. Someone in my other thread I made about these said they are the “Hyper” version of X-brains if that means anything.