Maybe they had offerings but when you look at the top 10 best games of that era, Nintendo filled most of that list with there own games. Sony relied heavly on 3rd party support and barely any good qulity 1st party games with the PS1 and Segas own games were on the down hill. Nintendo had the best lineup of 1st party games that generation and they still out shine many games today. Just look at the library they had and the reviews and software sales they had, and then you had Rare Ware.
Sony actually had plenty of good 1st party titles on PS1 (a common misconception, in fact). Regardless, you aren't negating the point(s) presented and we've gone far off-topic, now. So I'm not sure what you're after.
I am curious to know what great 1st party games Sony made during the PS1 era that iv missed out on? I own a PS1 and i can tell you, aside from Crash 1,2,3, and GT1, everything else was 3rd party devs. I am happy to have you list me more.
Back on topis, PC gaming has grown so much, its almost to the point where Consoles are trying to follow PC instead of PC trying to follow Consoles. Alot of gamers underestimate how big the community is. Dota, LoL, WoW alone have just as many gamers playing those 3 games then the entire 8th console sales combine (or close to) I think more gamers need to make the switch fast because upgraded yearly hardware is going to be the thread with future generations. More games, more options, more players, and more power. Thats the way i look at it.