I was in contact with both Ledger and Trezor a few years back regarding marketing on bitcointalk. Trezor said they'd consider it (but never looked into it further) while the ledger rep I was talking to asked what I could do with a $500/month marketing budget. lol
It's good news that big wallet companies like Trezor and Ledger are ready or have intention to run their marketing in Bitcointalk. It shows that they still consider Bitcointalk forum as one of good places for marketing.
They are both not too serious with marketing idea here, even they are opened with this idea. Especially Ledger with budget they intended to spend in PM with you. Trezor perhaps have better intention for marketing here, but if they want to spend $500 monthly like Ledger, they will be the same, not too serious with marketing here.
$500 monthly budget for marketing is like for a start up, not for big companies like Trezor and Ledger.