Actually though I can relate. I tanked more than my share of tests while trying to beat FFVI or VII a while back. Since then I usually force myself to wait until I have a decent bit of free time before I buy one of those really in depth games.... (I've still been putting on getting FFX).
One time my gf and I spent all of 2 days beating Ryven without stopping for anything. I think we finally finished it at like 7am on a Monday morning and then didn't go to classes later. We ended up doing the same thing a few more times that semester with similar games (including one of the older FFs, like maybe III or IV, and Sanitarium) but only when we had the time to kill doing that..
Even now, I still manage to get sucked into relatively straightforward games like GTIII-A and GTA3 (my most recent obsession). The fun thing now is walking into the store and being able to buy one or two video games without being flat broke like I would be in high school :).
For those of you with lives, FF = Final Fantasy, GTIII-A = Gran Turismo III - A-spec, and GTA3 = Grand Theft Auto 3. I have lost track of how many hours I've killed playing those games (well except for GTA3 which I just got this weekend), but that's nothing compared to some of the old Nintendo (8-bit) and Atari games.... I so kicked ass at games like Space Invaders, Galaga, and the first 3 or 4 Super Mario games. I remember spending many a school night beating just one more level on the latest game (like Bionic Commando or Metal Gear, the first one).... Those where the days.
Even better though where the days when we thought that the old Balley arcade system or the Commodore 64 where totally awesome. In fact, yesterday while I was cleaning out random toys and stuff, I came across the cartridge to one of my all time favorite old games, Radar Rat Race for the C-64. You have no idea how thrilled I was to find that. I was sure that it was included in things when we sold the old C-64 (to finance the purchase of my first PC, and clone 286 with an astonishing 1Mb of RAM.... yeah, that was a few years back ;). Apparently though I "forgot" to put it in the box with the other stuff. Now I'm going to have to buy myself a C-64 just so I can play the game... what a rough life :).
Ok, I'm going to go play GTA3 again... It's a horrible anti-social game where you steal cars, run people over and general cause mayhem and chaos, but damn it's fun. This game has no redeeming social values but I really really like it..
Now to run amuck on the streets of the digital metropolis... *evil laugh*