My E12 bulbs are the only fixtures in my house I haven’t hue’d. Just too dang expensive. It’d cost me almost $200 to do my two fixtures, even at the refurbished price… I love my hue bulbs, but that’s just not worth it IMO.
Do it slowly. Buy 1-2 at a time (depending on the fixture) over the course of a year or so. If you spread out the purchase, it won’t be as painful of a purchase.
That said, I get it. I want to put some E12s on my outside fixtures (for Halloween and Christmas) and I would require 9 of them to get the job done. No way can I buy 9 of them at once.