BOATLOAD

Buying the boatload is certainly the most cost effective way to purchase donuts. At $100 (US) for 2400 that makes them just over 4 cents apiece. The big problem I have is that when I have so many donuts I spend them more freely. Speeding up things, buying decorations that I don't really need just to increase my bonus percent, etc. So I would say go ahead and and do it if you have good self control or have plans for the majority of the donuts already.

Or give it to charity (Although, given the feelings for EA on this forum, buying donuts might be considered charity :) )

I've been playing since the original release, before it was pulled from the App Store and I'm on my second boatload. I justified it the same way lol.
The first batch went pretty pick, the second one I still have over 2200 left.

If you want to spend your money on it, yes.

All together now! Boatload! Boatload! Boatload!

So close to clicking that accept button...