I had the same dilemma when I started to collect Genesis as well. Like you, I wanted uniformity at first, but was torn on which design to choose. Eventually, like yourself, I just decided to go with the originals and forsake uniformity. Figured if it was good enough to SEGA to have a bunch of different variations, it was good enough for me. I'm really glad I went like that as I actually quite like the "salt and pepper" hodge-podge look with all the different spines lined up.