Because I would have to take the bus. And my gf would probably come with. So there is $11.00 there and back already. Anything I would wanna get there is not going to be as good as quality for "a couple bucks". They would be 40mm, not 80mm, they'd have lower CFM and they wouldn't be whisper quiet. So by the time I put the money on the table for a decent fan it'd end up being around $14.00with taxes. And if I bought the small-cheapies I'd still spend anywhere from 6-9 dollars for a total of 16.00-19.00 dollars when I get back home, with an inferior fan. Not to mention I'd have to eat while out.
So I saved myself some trouble, and a couple dollars by getting them online.
And I did get them off EBay, I pay with Canadian dollars, so it costs me about .30 cents more per dollar.
I only needed two as I already have some, and trust me, this is the best price for me. I would know.......