i wish to buy sto for my pc. i originally bought the disc for my son and he plays it on his laptop and i pay a monthly subscription for him. but now i too want to buy and play it.
do i use the same disc he has to install it on my desktop and then buy another key when i log in to account or do i have to buy another disc or buy it from steam with another email address etc?
Technically, buying the digital download IS buying a retail box, as the sales sites all offer a download of the game client in addition to giving you your retail key.
If you have a physical disk from a previous purchase, though, you don't need to waste time downloading, just get the new retail key, activate it on the STO website under a NEW ACCOUNT (don't use the old account), and then just use the disk you already have to install the game. Log in with your new account and password.