One of the appeals of MacHeist that a few participating developers cited for their participation is residual sales. Things like upgrade licenses, extra plugins and add-ons can all be big boosts to a 3rd party developer's revenue, and some of MacHeist's participating devs have certainly hit the ground running. Yesterday I received my confirmation emails and licenses from RealMac Software (RapidWeaver) and Dave Watanabe (NewsFire), both with exclusive offers for MacHeist customers. First, RealMac Software is offering a 10% discount on theme packs, and Dave is offering a 'lifetime upgrade' add-on for NewsFire for a mere $11. We've also known from early on that John Casasanta has had a version 4.0 upgrade just around the corner for iClip, and MacroMates had an offer on the table since day 1 of at least 60% off an upgrade license to an upcoming version 2 release of TextMate.
It will be interesting to see how all this plays out for these 3rd party developers in the coming months. I know I'm already falling in love with TextMate, and even though I use WordPress, ecto and Dreamweaver for most of my website needs, RapidWeaver is tempting me with its sexy ease of use and purty themes. The 3rd party devs, it seems, have already made a revenue statistic out of me.