D2 is an excellent short term investment.
It depends what you want. Unlike say, WoW or LOTRO or whatever, it's not updated with new items. That means that when you finally have that Ethereal BOTD Axe and that Enigma plate etc and you're soloing Baal on Hell mode... there's really not much else to do.
I made a fishmancer, solo'd everything except Uber Tristram for all the runes and items i needed for a smiteadin, then used the smiteadin to solo Uber Tristram.
Literally the 5th time i soloed it.. i realised, thats it. Game over. What now? make a sorceress? to do what? I can already solo everything with 2 characters.
Although it can be fun to leave it 9 months, then start all over again i guess from scratch.
once you have the jist of it, you can level your character from 1 - 75 in a day. 75 - 99 will take an awful lot longer. Without using a bot, you wont get past 92ish.
Anyway. dont let me put you off. D2 is awesome short term hack'n'slash and levelling that first guy up and even the 2nd and third is fun. Once youve got the best items and you can do everything, its not. Try never to be too good
