Stupid Demo Programs Good Enough to Buy, Too Stupid to Sell

Dear Software Writers/Salespersons

You have a demo copy of your software on my new computer. I like it. I decided to buy an official license. If this process is too complicated than a couple of mouse clicks - enter my CC and we're off, we have a problem. I'm buying another copy of my other software instead.

Regards, Angry Smart-Enough-To-Be-Dangerous End User