While I still feel that NES should be the top priority, I can understand why people would want Sega cases as well. If you go with the Sega case, I have one suggestion. The only way you will make good money with Sega cases, is if one case can hold all types of Sega games. I’m thinking of four case sizes (Master System, Genesis, EA Genesis and 32x). Something similar to your Game Boy cases which hold all three types. You will have a hard time getting your money back if you have a separate mold and case for each type of Sega game. You can call them universal Genesis cases, or UGC for short…….. oh crap. How about universal Sega cases?
That leaves one more question. Are there any Sega games that don’t fit into the 4 sizes I mentioned earlier? I’m thinking about games like Combat Cars or “J-Cart” games. They are a little bigger, but I don’t remember if their dimensions are different then EA Genesis games. Maybe someone else can weigh in.