High Mileage tow vehicle question

Thanks for all the replies, I like working on vehicles and this truck brings me back to when I did do more work and can see the engine. What I hate is working on a car that I need to get back on the road because I have to go to work in 3 hours and nothing is going right. We used to have an )2 explorer that besides having the transmission go at 100,000 miles we had both front door window mechanisms break two weeks apart both on days when it was -20 Fahrenheit before the windchill and of course the windows were in the down position. At those temperatures the lights in my unheated garage barely work and we had to send it to the shop. My thoughts of buying a 10,000$ truck with 200,000 miles on it would be is it worth it? My old girl led a fairly easy life but I still need to fix the heater fan and maybe look into getting the AC fixed. But I only paid a little over $1500 for it. So I am fine with nickel and dime repairs. I saw a 10 yr old Tacoma advertised with 210,000 miles on it for 12grand. That was what shocked me. I could see in my mind maybe paying 5 grand for one with that many miles unless it had a rebuilt drivetrain.