Dude I don't know what are you talking about and where you live, but I can find used Pixel 5 and 5a much cheaper, even Pixel 6a in good condition is below $300
Please check prices worldwide before you make some claims like this, and prices can be even cheaper for people who live in United States.
Models with A letter are smaller, made from plastic and have weaker camera but they are still good enough for GrapheneOS degoogled phone.
I live in Indonesia man, Google Pixel prices are still expensive. The cheapest Pixel 5 is around the price of $200 - $300 and it depends on the condition and completeness of the device. and maybe it can be lower if without any accessories.
In the United States, it will certainly be cheaper especially used prices, will be much cheaper.
It takes few minutes to install everything, but you need to have minimal knowledge with system installation on other devices.
I often install several OS for Android, Custom ROM, etc.
But I have never flashed an OS that is related to crypto wallets or an OS that is more concerned with security.
I don't want to rent a lot against ledger, I think I proved that I was correct when I criticized them in last few years, beacuse I had a feeling things are going in this direction
Now that it has become a custody wallet, what to expect? People are starting to abandon it.
Everyone is withdrawing from Ledger hardware, for the security of their assets. If you have predicted it, then it has become real.
Just wait for its destruction or cancel the update.