I make genoise cakes by hand, and using my undersized whisk to beat the eggs has been quite hard on my arms. I'm looking for those giant balloon whisks--the ones that Julia Child had, but sadly, they're so hard to find. Rose Levy Beranbaum recommends the Matfer whisk (available from JB Prince), but it's so expensive (~$40). I can't understand why a bunch of wires cost so much.
Where can I find a giant balloon whisk that's not absurdly expensive? I need a balloon whisk that's at least 6 inches in diameter at the balloon end. I'm from the Bay Area, and I've scoured so many restaurant supply stores with no luck.