My PS3 was bought solely for DVD/BD playing. Then I found the media centre functionality and all was much better.
My PS3 will be very unlikely to see a game.
As for wearing out the drive, I would think that he doesn't have too much to be worried about running the thing with a couple of DVDs a day.
Vizio M80-C3, Denon X6300H, Emotiva UPA5 (triggered), Wharfedale Pacific Evo 40s, CS, 10s, PC DX12 sub, Def Tech A60 Atmos tops, the internet, an ASUS ChromeBox running Kodi, a TiVo Series 3 and a Philips BDP7501 UHD . There's also a Wii, but we don't talk about that...