Not a bad haul. I have a similar convertor lingering around. I'd rather have close to $200 in my pocket, than a convertor I have not used in years.
Ebay can be surprising. In 2005 or so, I put a complete (box, tray, manual, game) Soldier Blade up there. During the last minute, it was at $75 or so. Decent, about what I expected for a true, complete, copy of a late TG-16 game. Then, 2-3 people REALLY got into a bidding war. From what I recall, I ended up with over $200 for it.