It does seem like a trend at this point, but you guys are irreplaceable. No four-legged resident can really replace a college student.
For one thing, the pets are always here and never ask for money.
They do sleep a lot, though.
I asked them to help me create on line profiles and they are really terrible at it.
They will keep your beds warm and will routinely destroy vacuum cleaners, but they will never take your place.