I'd love to purchase TM2, but I won't do that with one of the offered payment options for personal reasons.
I'm not willing to give any internet game shop my banking details or credit card data. I'll rather not buy your products at all. So do you plan to offer other payment options (like paysafecard or similar systems) soon? As you chose not to sell a retail version you should offer a wide variety of payment options or you might lose out on a lot of customers.
Bring it on

I'm sure more people are waiting for this.