[ThrustVectoring]

Absolutely. It's called price discrimination, and there's a whole treasure trove of literature about it. Usually it's not the exact same product, though, but rather something like "features that enterprise users need are extraordinarily expensive, everything else is relatively cheap". IIRC, single sign-on is an extremely common feature to use for this price discrimination.

Lots of non-SaaS companies use price discrimination as well. The biggest example is airlines, who will sell the same round-trip for different prices depending on whether or not the stay includes a Saturday night. Airlines assume that price-insensitive business travelers are generally unwilling to spend a Saturday away from home, and charge higher prices accordingly.