I don't really understand this though. I bought a nice Philips Bluetooth headset for $60. I would not say that is prohibitively expensive. Also, you can always connect the head-phone jack to the phone via the converter cable.
This whole thread seems very 'No True Scotsman' and a bit snobbish to me. Labelling the entire $140 - $280 wired headphone range as 'decent' but not 'good' for wired headphones is just ridiculous. Even more so calling every pair Bluetooth headphones below $350 not-even-decent. My Sennheiser PXC 550s (which regularly go for $300 on Amazon) would like to disagree.
There's also a whole lot of outdated information in this thread, e.g. concerning the quality of Bluetooth audio. It's really come a long way.
The point is that good quality Bluetooth headphones are still expensive. And as someone who has invested a lot of money in good quality wired headphones I don't want reinvest even more when we have a functioning technology that already does the job extremely well.
I can buy replacement earbuds at my corner bodega for $1.50. Yeah they're awful but they work, they have no problems pairing, they require no batteries, they're 100% compatible, and so on. 40x is a big difference.