No, this is the right place to post.
Yes, vinyl is usually an improvement over digital, though I should also admit my devotion to SACD.
However, the USB turntables I've seen are largely cheap junk. You won't get the most from vinyl - or even realize much of the benefit - with a cheapndeck and arm.
If you're interested in good vinyl with USB connectivity, I'd buy a good turntable, arm and cartridge and run them with something like the NAD PP3 phonostage. The PP3 (IIRC) is the venerable PP2 phonostage with a USB connector.
You don't have to spend a lot on a turntable, either. There are a number of very good used and vintage decks for any budget. Check the threads here for some good recommendations.
I know all of this will probably cost more than a USB deck, but you don't want to be disappointed in the sound. A cheap deck migh turn you off to vinyl and that would be a shame. If you get into vinyl with a decent deck, you'll notice the improvement over digital and will get hooked like the rest of us.