Because I've been enjoying the mess out of my 2012 iMac since last January, I haven't been following new iMac rumors much... but from what I've read the updates will be minor, and won't make me want my current iMac any less. It is a beast (a sexy one, haha). This is also my first iMac - I had a white Macbook before.
It really depends on your needs I guess. Mine are basic. My fusion drive and 680mx do really well for what I do. The only game I really play is Diablo 3, which at highest settings does very well (I don't know how demanding the game actually is, though).
If you need/really want one now, then get it now! But if you are fine with waiting an indeterminable amount of time for the new one, then wait. If I wanted the 2012 iMac right now, I'd have no issue buying it today, myself.
It really depends on your needs I guess. Mine are basic. My fusion drive and 680mx do really well for what I do. The only game I really play is Diablo 3, which at highest settings does very well (I don't know how demanding the game actually is, though).
If you need/really want one now, then get it now! But if you are fine with waiting an indeterminable amount of time for the new one, then wait. If I wanted the 2012 iMac right now, I'd have no issue buying it today, myself.