[aaronrc]

You should take into account where your users are located. I've found that PayPal is good for selling to US customers, only a small number of complaints about no alternative. Whereas for non-US customers particularly European ones PayPal is not a favoured option. In a previous company targeting Irish/UK customers we removed the PayPal option and switched to credit/laser cards only. PayPal seem a lot easier to deal with for US centric transactions and are a lot more tolerant of US users. Once outside the US (and probably inside for some as well) PayPal seem to switch to their arrogant we don't give a sh*t about you or your business setting.