fair. 

note trezor has "Bitcoin only" firmware option. 

but probably doesn't get much use as not the default.  

I'd also like trezor to be snobby and only support BTC. But I suppose then they'd have to raise prices. 

standardcrypto

bitcoin

Who pays for Bitcoin wallets?

Scoresby

I listed it as device sales (envoy from foundation and bitkey). I listed Blockstream as the revenue model for Green Wallet, because they do more than just produce Jade. 

I didn't list Trezor or Ledger because they aren't bitcoin only. I think the shitcoiners have access to a lot of revenue models bitcoiners don't. 