Unlike road bikes, gravel bikes, and mountain bikes, most hybrids are bought by casual riders, and many of those riders ride only a couple of hundred miles per year. And many of those ride considerably fewer miles. That's why so many hybrids listed for sale on Craigslist and Facebook look pristine. (I'd ignore bikes that look beat up or rusty. There are too many being sold in great condition to settle for fixer-uppers.)

You shouldn't have much trouble finding an appropriate hybrid for $200 or thereabouts that fits you well and requires little or no immediate maintenance. I might not pay much more for one---maybe $250 or so if I really liked the bike---but $200 or so for a decent example isn't worth arguing over for a bike that might last you 10 years or more. I paid $225 five years ago for Cannondale's entry-level hybrid model from 1995, and I've ridden it at least 5,000 miles a year since then, with the only expenditures being consumables such as tires, tubes, and brake pads.

Edit: I see a couple of posts from people quoting prices considerably below $200. Great if you can find a bike at such a price. But, as I noted above, it's not worth obsessing over the cost, unless you're the type who feels you're cheating yourself if you don't get it at a bottom-feeder price.

Second edit: there have been plenty of hybrid brands and models that are equal in quality to Trek's models, so you might consider casting your net a bit wider. I love my Cannondale hybrid, for example, which was built in the US, like the Trek 750 (and unlike the 730, if I remember correctly, for some model years at least), but there are plenty of Japanese and Taiwanese hybrids out there that you'd be just as happy with.