If someone is really using their computer I feel 250GB or so is the minimum anyone would buy. hell, when I got my Samsung 850 EVO 250GB SSD in May 2015 it was because the prices on those were finally reasonable (while I could check to find out for sure, off the top of my head I think I paid $120 for it(possibly a bit less)) and the product is fast/reliable.
but now it’s nice to finally start seeing the 512GB range SSD’s getting around that price range as I figure for anyone who plans on having a fair amount of modern games installed really needs at least 512GB or so on their SSD in order to ensure they won’t have storage space problems and not only that I thought I read that if SSD’s become too full their performance can take a hit. but I won’t be dumping my Samsung 850 EVO 250GB anytime soon as it’s still quite fast and has enough storage for me as my larger files I tend to just put on a regular hard drive and only put stuff that really benefits from loading quick on the SSD. hell, even if I build a new computer in the not too distant future, ill probably just use my current Samsung 850 EVO 250GB SSD in it to save a bit of $$$.
p.s. so far I got a bit over 11TB written to it and it’s about a month shy of a full three years since I had it. so even if I do 4TB per year, at this rate my SSD will last at least 18+ years given it’s rated for 75TB of writes and will likely go quite a bit beyond that before actual failure occurs. this assumes the drive only dies from writes and nothing else though.