lol Chokolate neither do I! [only one I paid for was PSE5 and that was YEARS ago!]
A pen tablet makes digital art so much easier, but it -is- possible to be amazing and only ever use a mouse. I'll never forget, years ago, seeing a STUNNING piece of a Friesian. The artist had created rainbows [think oil slick shine] in the shine on his coat, and the piece was incredibly detailed, accurate, and beautiful. Artist comments said it was done with a mouse. Can't imagine the number of hours of practice that would have gone into getting so good - with a MOUSE. Seriously. That's just insane.