The thing is...I am a self-confessed alto-holic. I have 10 toons, 6 of those 50 or above and I have every craft to 450, some more than one..i.e Slicing/Scavenging.
Every alt I start I deck him/her out in purples and that requires a crap load of mats, all different kinds seeing as how I change them out every 5 or 10 levels. Just scavenging mats alone take up 1 bank vault on each of my toons, archaeology takes up 1 vault as well.
pack rats have these issues and I for one agree with the OP