[quote name='Havok83']the reason to get it it is trophies bc simply downloading the free to play version wont get you that[/QUOTE]
Buying this will only get you trophies for a month, though. You need to be Legendary to get trophies. Rather than pay $15.89 for the 'free' 1 month, you could just buy 1 month for $15 for Legendary access. Or, even better, play for free (trophies are unlocked in the background) and then go Legendary for a month in the future if you really want all of your trophies.
Regarding installing, it IS possible to install based off the disc, but then:
- You still need to download several GBs of update data (I'd guess at least 5 GBs at this point)
- You will need to use the disc to play.
It's better to just download everything and then you aren't tied to the disc. The disc-based install saves you absolutely zero disc space. (For those asking, I haven't checked in months, but it used to take up ~20 GB).
Also, just an FYI, all updates are delivered through the DCUO client; i.e., it does not use the native PSN update infrastructure. So all updates are delivered interactively and cannot be done in the background (like MAG).
I played for a few months shortly after release. It's the only MMO I've really played. It was pretty fun, but I didn't game enough to justify the cost.