Are you a low margin online business and PayPal fees eating into your margins?
Want to reduce PayPal fees?
Before you attempt that, you need to know why your customers use PayPal on your site and this post covers this aspect.
I trust PayPal and feel more comfortable using PayPal on smaller and not so well known sites.
Apart from PayPal brand recognition, PayPal buyer protection plays a big role is building this trust.