I've purchased a few remasters that I never played on my ps3 for example.
Sleeping dogs and metro 2033 being two examples. Resident evil hd being another but that is a classic game and last time I played that was on PlayStation 1.
I see devil my cry is now out and considering it. As I never played it and I've never played DMC so the DMC definitive edition looks good.
I must admit , back in 2007 - 2012 I was in relationships etc.. Never had much time for gaming, then in 2012 I decided I'd had enough and annoyed my at the time gf and stated to play video games again, hence this just ended up adding to our issues and we split. Now I find all these games everyone played and I hadn't.. So to me some remasters are awesome..
I even went and purchased another ps3 to play some older ps3 classics etc like gow, heavy rain etc.. I guess it depends, I never played gfa v on ps3 but os4 I have , I'm happy enough with them... But for me I have good enough reason to buy them, plus they tend to come with all the dlc etc..
Don't get me wrong, I did manage to play some games back during last gen but missed an awful lot..