i say snap them up now. i have "14 QBs from the early 80s. SICK hi-hats, the bottoms are pretty heavy & have 4 holes in them to eliminate any air (that dreaded "chomp" sound vs.
excellent "CHIP"). makes the ultimate "PST" sound (stick hit/open HH/BD hit all at the same time). i use them for big band, rock, funk, blues, everything. only downside is that they are too bright for ballads, but i make them work anyhow.