The website will be accepting BTC as well but having it accept credit cards will probably increase sales.
I get your point. But looking for a service like that is a bit difficult. Which is why the websites that I posted above doesn't have enough review, to begin with, so proceed with extreme caution.
Another solution is to have a separate payment processor and then you have to manually convert your fiat to Bitcoin.
Btw, avoid double posting as it breaks forum rules.