I have a stationary bike that folds up some to save space in storage, and a rowing machine. Both are idiot simple manual units but they work fine for my needs. I got them at yard sales so I might have $50 in the two of them at most.
Same here, a set down stationary bike in the shop and a treadmill in the sports room , watch utub videos fishing or a walker videoing his/her walk most anywhere in the world.
Like you I have less then 50 bucks in both of them.