I have an old Bogen 3036 with 3047 head. It'll hold my Sinai 4x5 with any lens and all the accessories or my barn door tracker and biggest lenses without shaking, even in moderate wind. It's rock solid and cost me a good bit less than $100. The down side is it weighs a ton! I built a sling to carry it because it's not easy to move along with one of my LF cameras, lenses, and film holders.
I have a few other, lighter tripods, but none are anywhere near as stable or robust. None hold my 4x5 tripods without at least some shake. One day I'm going to buy a nice carbon fiber tripod so I can have a stable and portable tripod, but those are crazy expensive! Until that day, I'll just keep telling myself I need the exercise.