I have developed a website and I want to integrate an online payment system with my website. What is the best online payment tool, moneybookers, Google Checkout or paypal?
This topic is discussed at length on Joel Spolsky's Business of Software (BOS), and there's a few threads dedicated to this topic at the
BOS FAQ.
Scroll to the middle of the page to find the topics on payment processors.
I just signed up with FastSpring as my payment processor, and am very happy with them. It only took a day to convert from PayPal. Fastspring also includes PayPal as a payment option, so I didn't loose PayPal as a payment option for my product.
PayPal has no shortage of bad press online from sellers.
However, as a buyer, PayPal really increases my own propensity to make small / impulse purchases. Good buyer protection, no need to share credit card details, trusted brand, and the fact that my account is already sometimes funded.
I personally think you'd have to offer it, but others may have more detail re effect on your conversion rates.