*raises hand* And the one from Railcraft.
Seriously though, how many people spent their entire time in the Ultimate Modpack, playing with RedPower2, and never realizing the Greg Tech Wire Machine could do the same recipes and for better efficiency, and instead stuck with a Diamond Drawplate?
Just because people are lazy, doesn't mean you shouldn't include the option for people willing to hunt it down. And besides, a block powered by the Frictional Heater, that uses oxygen to reweld armor together? Yeah, I'd use that over the AA repairer. Just because by the time I get to needing my armor repaired, I'll have a lot of oxygen spare.