I don't think anyone actually just uses Paypal but its nice to see the alternatives and make people aware that the might of PayPal actually does have competitors.
I'm glad they mentioned Stripe at the bottom, I got the chance to meet them at last years Silicon Milkroundabout and there doing a great job at making developer solutions to payments. Canny bunch too.
But for all PayPal’s strengths, it’s a bad idea to rely on it as the single system to accept payments on your site. Monopolies are never healthy, and you need to diversify your payment channels.