I thought I saw in the price list just over two years ago that the upgrade from A5 Extra to A6 Commercial was $179 or $189. It's not that far off from the actual A6 Commercial price, but it's still a reduction. This was two years ago so things could've easily changed. The shop doesn't work with Firefox at all and I'm not taking out insecure IE just to see the prices.

"You level up the fastest and easiest if you do things at your own level and no higher or lower" - useful tip My 2D game - release on Jun 13th; My tutorials