I have been using http://www.swreg.org/ http://www.swreg.org/ (now part of Digital River) to handle all the billing and credit card payments for my downloadable

I have been using http://www.swreg.org/ http://www.swreg.org/ (now part of Digital River) to handle all the billing and credit card payments for my downloadable software for about 10 years. I honestly wonder what the conditions are under which it doesn't make sense to outsource all this trouble to one of the many service providers.