[vcf-midatlantic] Cheapest way to buy nice stools?

We're considering putting a nice metal stool at each computer in the new museum. However, they seem to be pricey. Even very simple ones (like this: http://tinyurl.com/jhpp6ds) are $40 each, and I'd like to have 30 of them .... but that would be $1,200 which is way too much for us to spend on this. Harbor Freight has them for less than $30 each -- I have one at home and it's great -- but the tops are bright red. :) Not appropriate for our museum. Does anyone know where to get such things cheaper? (We're not looking to collect donations of mismatched stuff.)