The Shaiya install took forever. Cronous and Dofus both finished downloading in the meantime and I felt a little silly because they must have slowed the install process some, right? No, they didn't. Shaiya actually spent more time installing after they finished than while they were going. My connection isn't even that fast.
These had better be really really awesome, not just everyday f2p grindfest awesome.
See this thread at mmorpg.com for a hint at the motive for this new wave of self-torment.