One thing I think separates the Humble Bundle from the Indie Royal bundle is that Humble Bundle games always work on Windows, Mac, and Linux. I primarily use OS X and Linux these days, so that's a big incentive for me, and helps keep my "fatigue" down.
That said, if this turns into a never ending string, the amount I contribute towards each bundle would likely drop since frequency would be going up.
Probably something for the Humble folks to investigate - which performs better - more frequent small bundles or less frequent larger bundles.
"Humble Bundle games always work on Windows, Mac, and Linux"
The experience of the mono-compiled Atom Zombie Smasher (from Bundle 1 or 2 IIRC) was pretty poor on Linux.
Never got to play it myself - I saw it mentioned that it was easier to get it running using wine + the windows installer (including all the faffing about with dotnet under wine) than natively. Might try that this weekend.
All other bundle titles I have played run well, apart from the occasional dual head quirk (though I am more likely to blame nvidia's poor randr support for that)
I played Atom Zombie Smasher on Ubuntu 11.10 and didn't have any issues whatsoever. I didn't even have to mess with the screen resolution after the game ended (which is generally the norm on my Intel GMA card). It was one of the smoothest Linux gaming experiences I've had.
That said, if this turns into a never ending string, the amount I contribute towards each bundle would likely drop since frequency would be going up.
Probably something for the Humble folks to investigate - which performs better - more frequent small bundles or less frequent larger bundles.