There are several other deposit methods, all secure in their own way, some not as fast and easy. What it boils down to is what you'd prefer. Some use PayPal, others just simply use a credit card. It doesn't matter. What matters are options. Also with so many different options available, transfers are easy for any casino gambling player in the world. Some casinos are quicker than others when you make a withdrawal so the fastest withdrawal casinos can be preferable to get your big win quicker.
The number of deposit methods available for you will vary depending which country you live in. UK casino deposit methods are plentiful with PayPal even usable now, whereas US casino deposit methods are much thinner on the ground, though there are now several online casinos that accepts US credit cards and payment solutions such as Quicktender, UseMyWallet and eWalletXpress are now available as well. Canadians fair a little better than their souther cousins with plenty of Canadian online casino deposit methods to choose from.
Being able to deposit quickly, easily and securely at an online casino is one of the most important features for all types of casino player.