Lol people still don't realize that the "illusion of choice" in this game already exists. You have the "choice" to unequip that job crystal and slot that Cure 1 and Physic on your Gladiator, equip a hooded robe and a bunch of MND and PIE accessories and go to town with your heals. You can do whatever you want playing solo or with friends; no one's stopping you. Hell, we've seen 7 MRD+1SCH kill Primals, class-only (no job crystal) CT runs and we're seeing WAR DPS in groups now. As long as you have 3-7 other friends queueing with you, you can spec any way you want. But don't expect random people to accept your off-the-wall tanking LNC when they just want tomes/drops or expect to be clearing highest lvl content.

I saw FFXI and Diablo thrown around in this thread and I find it funny when they're lumped in a sentence with the word "choice." You may have an argument with D2 since it is the only Diablo game that promoted class diversity, but XI and D3 are far from having any choices. Unless you think 5/5 Warcry merits and not using the latest flavour of the month 6pc set in D3 will get you anywhere.