I like the site and think its helpful.

I have to say it isn't for my case though. I'm using Paypal's website payments pro for my current app, and that comes with a monthly fee not factored here.

Also when I looked at using a real merchant account, these fees vary greatly and no one I was looking at was as cheap as 1.8. All the merchants I looked at were more expensive than Paypal percentage wise. I also feel like this doesn't account for some batch fees I saw.

Not to mention that many times with merchant accounts you are paying a merchant fee and a gateway fee.