For what it's worth, I think I am. I got a gift voucher from work a little while back, combined it with a few other gift vouchers I had lying around and bought a convertible ChromeOS tablet. It seemed like a good choice, since I didn't have a tablet form-factor device at the time, it was a lightweight ARM thing that could natively run Android apps and Linux apps, and it ran a mostly-OSS stack including open source graphics drivers. I found it way more appealing than the equivalent devices running Android or Windows.
As soon as I got it home, I realized that all my passwords and bookmarks were in my Firefox account, and I remembered that I don't really like the idea of using Chromium-based browsers on the web for philosophical reasons. I tried to install Firefox, but the Linux version didn't work too well in tablet mode, so I had to suck it up and use Chrome. Kind of dumb on my part, I know, but I still like the device, and I'd like it even more if Firefox worked better on it.
As soon as I got it home, I realized that all my passwords and bookmarks were in my Firefox account, and I remembered that I don't really like the idea of using Chromium-based browsers on the web for philosophical reasons. I tried to install Firefox, but the Linux version didn't work too well in tablet mode, so I had to suck it up and use Chrome. Kind of dumb on my part, I know, but I still like the device, and I'd like it even more if Firefox worked better on it.