In the period of over a month that paid Google Android apps have been offered in the Philippines I sent over a HK$10.00 donation to Katecca, forked over US$5.98 to Laminar Research and UK£1.23 to TouchType. Roughly about Php403.
I am trying out PicSay and Photo Enhance now, after having used Abode Photoshop Express for some time, and might buy that app (although I am looking for something that can crop and maintain a 720p size). Will probably unlock 2-3 more planes on X-Plane 9 and send another US$2.97 to Laminar Research.
Software has never been so inexpensive. The low prices make it really tempting to buy more. How much have you spent on apps?