I buy 3-50 of around 12 coins every year for date runs and a few odds i like the look of so i would have to say im collector stacker but as im from the UK, its cheaper for me to buy a ASE/kooks/elephants over a round/bar because of the 20% vat we pay. If i buy from certain euro counties, i can get coins with a monetary attached vat free, vat is still paid on rounds/bars. So i guess i can say i stack for weight in a way :) Nice post :)