... I am now convinced, from personal experiences and events with a friend, that they are now the One Ring of the art world.
You will always lose them when you need them most.
And when you will find them again, if ever, you will be all over them and petting them going "The Preciousss.... we have found it again".
Link
DingoVolf
With all of the units showing up out there, it'd be sweet if there was one place with in-depth reviews of them all.