The problem with affordable USB mics is that they look like toys. The problem with 'proper' recorders like the Zoom is that they're expensive, especially if you're not using them much.
I don't know of anyone making a mid-range product which does both jobs well. Someone ought to start selling one.
The Samson is the best and cheapest I've been able to find - but something smaller and cheaper would be better.
Yesterday I did a voiceover in a pukka studio with an acoustic speaker's booth with a good mic, but the track went straight to an H4, and the engineer doing flying 'marks' on it to indicate fluffs and retakes. You can't be me, I'm taken