Say what you will about Girls Aloud, but it appears that they know how to take care of their [admittedly insanely obsessed] fans.
Just announced through their website, a limited edition of 5000 copies box set of all of their singles. Each single comes backed with every b-side from every format - physical, digital, CD, vinyl, doesn't matter, it's there. On top of that, stray compilation remixes get partnered with their appropriate single and random tracks that were on the best of bonus disc are with their parent single. We're talking everything here - if there was an edit version, full length, and dub version of a given remix, it's in here. Amazing. It'll run ya about $100 US, but some of us are crazy enough to fork it over. Ahem. [It's an instant collectors item so I will have no problem unloading it should I suffer from buyers remorse and/or decide I don't need a zillion remixes of "The Promise".]
The only downside is it does contain their abysmal cover of "Walk This Way" with the Sugababes from a few years ago, so I do finally have to buy that. Boo! [Though completist points for including it. Well played, girls.]
All packaged in a nice metal box too. Much easier than trying to track down a gazillion out of print CD singles and poor bitrate mp3s. Huzzah!
update: So it turns out there are a few things missing - the Jeremy Wheatley "Can't Speak French" for one. However, overall they did a better job than most compiling it and in this day and age that's good enough. Not letting us know when we ordered it that it's not shipping until the end of June - that's 2 months away! - when they've already charged us for it was a bit nasty, but there you have it.