People who grew up on the artificial flavor prefer it over the real one. I have quite a few in my circle of friends.

You go to an Italian restaurant and you get plain pasta, panned in butter or olive oil and then someone comes with a real truffle and grates it in front you of over your dish until you tell them to stop. You pay for that amount.

Unless you go to a restaurant with a great reputation or some Michelin star venue, that is the only way to be sure you're eating real truffles. The dish has no truffle-aroma itself and the truffle is grated while you watch.

Assuming ofc (and probably true for most people): your palate is not well acquainted to the taste of the real thing enough to tell it apart from the many fakes/substitutes.

[1] https://www.tasteatlas.com/truffle-industry-is-a-big-scam