I'm wondering whether there are possibly any benefits to having fewer payment processors if you just had a simple site where you were selling one product or something. I don't see how it could hurt to have as many payment options available as possible. What do you think? Btw, sorry if there has been a thread on this before. I wasn't able to find one if so.
As a customer I find it the more the merrier... anyway if you got visa/mc as an option it wouldn't be much of a hassle