For some strange reason, I've recently become interested in getting a Sega Nomad. You know the portable system which plays Genesis games? They have them for $50~$70 on eBay with the battery packs, adaptor, and a few games and I am wondering if they are any good...I've never played them. How come they weren't very popular when they came out? Too expensive or something? Do they play games really slow like the Game Gear does? If anyone has experience, I'd appreciate any information they could give. Thanks.