Take the review as you will, but this caught my attention:
It's also worth noting the online registration process, which locks your copy of the game to your Konami account for online play. This means that if you ever want to sell your copy of the game, the next person will be unable to play online unless he or she has your registration details. To our knowledge this is the first time this has happened in a PS3 title, and Konami's UK office declined to respond to enquiries over why the system was implemented.
As a PC gamer who enjoys MMO's, this isn't anything new, but I am surprised to hear this happening for a non-MMO console game. While it sound overall the neither the PS3 or 360 versions of the game are incredibly impressive, its odd they would do this to the PS3 version of the game and not the 360. Now, practically every MMO out there ties your account to the game; indeed, your registration key is more important than the installation disc. I can't think of a single game yet that allows you to sell your account, either. Unless Konami provides purchasable account keys later on for people who buy the game used (allowing them to make money off the used game market), I can't think of much benefit from it for players or them; its arguable that by doing this they're trying to encourage people to buy the game new and only new, but I think it'll generate more ill-will for them than anything else. While there are a lot games that do this, they're primarily on the PC (such as the superlative Guild Wars), not console, and the difference in expectations between the two platforms is considerable.
(originally posted by me on the ESaL Sony Union)