Kitchen updates, bathroom updates, pool, deck, spa, pool repair, plumbing repairs, sewer repairs, landscaping, gardener, tree trimmer, retaining wall repair, drainage repair, trash, water, a lot of people are currently paying $1k+/mo for utilities unless they have solar in which case they paid $30k for solar. It’s endless and everything is more expensive in a 2.5mil house because they know it’s a 2.5mil house in an expensive neighborhood. A lot out the condo buildings in town have monthly maintenance fees of $2k and that seems like a bargain.
Not saying it’s different in the Midwest. Wherever you buy a house, you need be prepared to pay a lot more than PITI.