Liked it overall, though I would like to state two things. Sega Master System NFR carts are actually not that rare, they pop up quite frequently because, other than the kiosks, Sega also distributed them for stores to use singularly. That is, you could have one or two sample games if you didn't want the whole kiosk thing. These games tend to have 'SAMPLE' or something like that on the back and then a real label on the front. Others have nothing. There are also demo cards, but you probably know that. The one critical thing to mention, however, is that sometimes these games are prototypes. Most people don't know that and assume they're just sample games, when quite a number of prototypes have been found this way. In other very rare cases, the games will be genuine unreleased titles. For example, a guy found a horde of these and posted them on Atariage and I helped people nab a bunch. For helping him, I was given first dibs on an unreleased NTSC version of Super Racing, and it's packaged in one of these 'SAMPLE' cases with a real label on it. Just something to mention, but very informative overall. Enjoyed it.