Online business

With the phasing out of older forms of payment like checks, one can't help wondering how far we are away from the truly cash-less society.
Suffice to say online businesses cannot really operate without some form of dedicated online credit card processing, and although there are other online payment services available, they do not really give the right professional impression - not only that, they can be a pretty expensive way to complete transactions online.
I am branching out into a couple of extra online ventures in the coming months, and will have to choose whether to team up with a dedicated online credit card processing service rather than continue to rely on the more common online transaction service used by bloggers and online auctions...