Easily one of the more annoying aspects of being a loyal Apple customer is dealing with the Dock connector. Oh sure, it works great when you buy your brand new iPod touch or iPhone, and then buy your similarly brand new iPod speaker system with dock connector. But just wait a year.
Some of the best sound you can get for under $1000; nice design; USB port (N22) for charging your iDevice; outlet for an AirPort Express (S8
Not cheap (but worth it); N22 could use a power outlet for an AirPort Express; or AirPlay support would have been killer