I have to say endurance is never an issue for mainstream end-user drives. You will easily get around 200-300TBW for 500GB drive, 250GB probably 100-150TBW.
If you have to write 200TB of data onto your 500GB drive, you probably need a bigger drive instead. I used to have an Adata 500GB but its too small due to the ridiculous of space needed by games today, esp. online games (eg. WOT, WOWS, MWO etc...). I usually play them 1-2 times a week. Not that often but having to reinstall every time I play is too tedious. So, bought 1TB drive and resolve the space issue.
Of course, there are situations where uses will need to keep writing to the drive (eg. video editing), but this isn't what most end-users do on a daily basis.