As always bad console sales resulted in a vicious cycle of fewer attention from 3rd-party devs resulting in even fewer console sales.
In the US Sega provided early release units to several retailers but notably skipped Best Buy, Walmart, and KB Toys. KB Toys was so mad they didn't carry Saturn stuff at all from that point.
At the time KB Toys was a pretty major retailer for video games, they'd have a presence in malls where a Babbages, EB, or Software Etc (retailers that got early release Saturns) wouldn't be found.
Sega's early release of the Saturn was one of the dumbest own-goals in video games. The Saturn was already going to have a serious struggle against the PlayStation for other reasons, fucking over retailers did absolutely nothing to help Sega.
NES, Genesis, PSX/N64, PS2/XBOX, PS3/XBOX360, XboxOne.
I was fanatic about Genesis because of the big title games like Mortal Kombat, Sonic, etc.
I VORACIOUSLY read gaming mags and the hype around the PSX was massive. It utterly dwarfed Sega. And seeing the first image of Cloud starting up at the Shinra tower captivated me. The games they were touting were just incredible looking.
I was just a kid and marketing won me over.