I love how whenever you rely on something or someone else to make money besides yourself it usually bites you in butt. Like renting things out, but it doesn't take much for that earned income to go right back out. Like let's say you rent out a trailer. You may rent it out 4 times without an issue until someone runs it into a curb bending the axle. Now we're back to square one. Still little physical effort spent, but still a waste of time in the end. Versus just getting a regular job and putting in a good days work yourself to make your $300 or whatever it is you aim to make. Not saying that can't go sideways too, but it's less likely.
Opinions? I'm not really sure why, maybe it's just too many things out of your control at that point.