100% the same, literally just done this for fists and iron hands! I hear you, my paint addiction is disgusting, I buy so many 'just in case', I haven't done stock take for a while but the TTC rack is 60 to start, I think the stand I have h olds about 70 citadel ones and I have another tub with them too. A few cameos by scalecolour and GSW too. I really like the coloured metallics, can see that range expanding.
Also dice, need chapter specific dice, this is why I rolled so bad in my last game, using chaos dice with SM's..
On a plus with the paint stuff, when I watch a new tutorial, high chance I already have the paints needed (or equivalent)