One thing I (a Dutchman) noticed while in Copenhagen is that all the bicycles I saw were quite fancy! I spend less on bikes than I do on my shoes, and I don't spend a lot on shoes. Of course, you can splurge, but it's very doable to do what I do: buy a second-hand bike for about €50 every two years, and now and then spend a few Euro's on a repair kit to fix a flat tyre. (Or a few more to have someone do it.)
My bike was about €60 in Copenhagen, and other than some ~€4 supermarket lights (after I accidentally smashed the built-in one into a bike rack) I haven't spent anything on it.
It looks roughly the same as most of the bikes in the racks at home, at work and around the city.
If you visited people in the suburbs, it's more likely they own nicer bikes. Or, you might see people riding nice bikes at the weekend.
In general, the better the infrastructure is, the easier it is to get away with a crappy, crappily maintained bike. And the less you need bike-specific clothing, too.