Expensive, short-lifespan, heavy, hot (do NOT put them on your lap; it's actually become a serious problem of men becoming sterile from leaving hot laptops on top of their testicle region) and overall not worth the effort or cash involved. You'll find that even the best gaming laptops don't compare anywhere near regular towers.
Get a basic tablet for word processing and other simple apps, or just use a normal book. You really don't need to game at college, and the money you save on not buying a gaming laptop can be spent on a much better, cheaper gaming PC for when you're relaxing at home.