boobah... the themes available (at least of most them) aren't costing anything (except if you go into the Premium Themes)... it's the software to apply them that cost something. The theme I currently have applied may not look special for you but I think it's pretty good. According to yours, ok, maybe it's worth 3$, but the thing is you need to go about apply everything yourself... What I mean is, hack the theme system so it can accept unsigned ones, resHack your clock and start button then install the icon set by yourself. Like I said, I don't want to do it myself so I can avoid screw-ups and... well, because I am lazy. Personnaly, I don't like your theme very much.
Sure, I don't have a clock, icons and cursors but the theme skins what I want for me without much trouble. Maybe it isn't worth 20$ for you but the 20$ for me aren't for the themes but for the ease of using themes and the actual choice of themes. I only have to google "windowblinds themes" and there'll be a ton of sites offering them.
Still evaluating the software. Might change my idea after the trial or during it.