Honestly, your logic is spot on. NCVs (non-denominated chips) are definitely more flexible — you can tweak values depending on the game, the stakes, etc.
Buuuut… I’m human, and humans are not known for being 100% logical creatures.
Despite the flexibility argument making perfect sense, I personally prefer using chips with denominations printed right on them.
Sure, it’s less efficient. If you go the denomination route, you’ll need way more chips to properly cover different games and structures. (At some point, the amount of chips in my chip cases started looking like I was preparing like a prep-per for the end of the poker chip world.)
But I accept that inefficiency with open arms.
Because at the end of the day, there’s no sweeter sound than NOT having to answer for the hundredth time, “Hey, how much is this one worth again?”
(And no, nobody ever seems to remember after you tell them the first 12 times.)
In short: Logic says NCV. My personal taste — and my sanity — says denominations. It’s one of those irrational preferences that I embrace and have zero plans to correct, and if makes me buy more (moar) chips, well then, the better that decision is (For Me)