We also only use PayPal at the moment. We are however currently looking at introducing more payment methods such as Bitcoin and also a mobile payment system (watch this space?).
Our host allows PayPal, Google Checkout, and check or money order. The PayPal automatic subscription is very nice. No need to remember to pay that way, it just does it automatically!
Strictly Paypal and our merchant provider for visa, mastercard, discover and amex. All of these other methods we have found to lead to more spam and scam.
I think people are maybe also forgetting about PayPal pro and not just PayPal. With PayPal pro you can also accept credit cards within the same system. It's quite different than "regular PayPal" with quite a few more options...
Because we host all sites personally, we accept cash, check, money order, cashier's check, credit card, or if have to PayPal. We offer no payment portal as not all hosting requirements are cookie cutter.
Our company uses PayPal & Stripe to process credit cards. I've been looking for a decent Cryptocurrency Payment Gateway. A while ago I can across EncryptCoin however, they went down.