It's sort of crazy, there is a psychological barrier to overcome, at least for me. It took me quite a while to move larger amounts from Electum/Core to a paper wallet. Not because I didn't trust the technology, but because paper (memory cards, or ...) feels even less tangible.

I encounter the same problem right now with my Trezor and my intermediate solution is to keep the paper untouched where it is, but move parts of the pocket money to Trezor. This feels the most secure to me, because I don't intend to spend the cold stored coins anyway and adding exposure only adds risk in my opinion. On the other hand it's great and awesome to know that the day-to-day coins are pretty untouchable now, too.

The only thing missing is support for raw transaction signing, but I haven't explored all options yet and only played around with the Trezor "web wallet". I do a lot stuff that involves handcrafting transactions, but the flow has changed from "transfer coins from Electrum to Core/daemon dev wallet" to "transfer coins from Trezor to dev wallet.".