I do not and never will use PayPal. That is a complete deal breaker for me. Seeing as I don't do animations, your light version will probably fill my needs as a replacement for the cloth simulator. So, for me, I'll buy the light version (if you make it) but would never in a million years buy the full product, simply because of your chosen method of purchase. (BTW, there are other options to PayPal: Amazon WebPay will take no fees from you or your customers, the only catch is you can't withdraw amounts less than $10. Given the price you're asking, that won't be a problem and will net you better returns; Dwolla charges you 25 cents per payment received rather than a percentage; ClicktoSell is like Paypal but also accepts payments from PayPal, Google Checkout, Skrill, and credit cards with or without a merchant account).