Haha. Yeah... I mean, who doesn't appreciate a tip? I have been on the vendor-side of many counters of varying business types. Not all of them were tip-worthy transactions. That said, I don't take issue with any business offering a tip option at POS because I also have no issue with tapping NO TIP for certain transactions. But for those so inclined, having the option is win-win.
The bang-for-buck for this hardware, seems pretty good. While my initial concern about the inevitable: when the 10.2" iPad's physical dimensions changes to not fit with this hardware, it's quickly pretty much moot when you consider A) the relatively low cost of this Square hardware and B) that whatever iPad that does fit this hardware will likely perform Square's transactional functions for years (not like it needs to play the latest game at the highest frame rates). Anyway, if my Mac-powered company were in need of transactional navigation and management, I'd likely consider this setup.