You have to be prepared to deal with an old home's quirks. It is not going to have all the amenities and features of a modern house. Yep, it will wiggle and squeak and probably will need to have its electrical and plumbing checked out by a competent contractor.

It will have been "maintained" by people of varying skills, desires, tastes, budgets, etc over its lifetime. Many of the repairs I've had to do in my old house have involved undoing or fixing the previous owner's poor work.

The flip side, our house is over 100 years old and has most of its original windows. Other than some painting, glazing, and caulking they're fine & pretty weathertight. It has 12" wide floor joists ... I could park a car in the living room. And it has glorious architectural details not found in (or poorly imitated in) modern homes.

The inventory of old homes will never be larger than what we have now. Every year, old homes are lost to fire, flood, tear down, and insensitive remuddlings. If you're not willing to live in and love an old house for what it is, please, buy a new home.