Sad. Atari got so much right, either by luck or good design, with the 2600 -- given how everything was new and undefined at the time. Yet with the 5200, they kind of tripped over their own feet in ignoring some of those ideas. Like simple controls (the 2600 had a huge advantage over the Intellivision in this department), sweet catalogs, and cartridge end labels.
They reversed course and went back to the ideals with the 7800.
For my own 5200 carts, I just used a basic label maker. It doesn't look as good as the ones shown above, but it works for me.
5200 is a beauty. Great design. It looks like it belongs in one of those audio cabinets with stereo equipment. It's too bad they skipped the end labels. It is interesting to note that the Colecovision did not make this same mistake.