My 2 cents are:
- Move HDR into the indie version, the rest of the post processing are Pro. This may already be true, not sure as I have not downloaded yet. The advantage is in the showoff board, users will be posting pictures of better looking games and it will be self fulfilling to help sell more copies of GC when the casual user looking at game engines stops by.
- Increase the max exported game size, maybe 400 or 500 meg or no size limit on indie. I am at 1.4 Gig now, so I have to move.
- The big one... offer custom splash screen control on the Pro version. This alone would sell me. Still keep GC logo if you have to, but maybe smaller corner version of the splash screen. This keeps confusion down of where players go for support if they have trouble.
- If you can, post your price on the order page in US dollars. I believe its 'looks like' less $ that way if its possible for your store setup.
- Run a sale of some sort. On my dyno website, I always have some sort of sale going on. The dollar gain from additional buyers always exceeds the little bit I lose per unit sale. As soon as I get enough content for my game, I will be adding sales and upgrades (additional vehicle packs, motorcycles,...). Every single time I send a mass email to my dyno users with a upgrade sale offer, there are always buyers. (PS - this is more into web marketing, but I did test of the exact same software combo, called on the budget pack, one the pro pack, and the pro pack outsold the budget 4:1 even though it was the exact software combos and exact price). This was 7000 emails, so a good sample size. I should get into web marketing, but its boring

- programming is so much more fun - lol