The current 3D printers are a nightmare to deal with. Whether clogged nozzles or user error they seem to be breaking a ton.
What I'd propose is to get one kit, set it up and try it out for an extended amount of time. If it works out, it may be a worthwhile investment to get another one.
The machine can be run in standalone or using Octopi. The advantage to standalone is there are many more robust features like resume on power failure, etc.
The price tag is higher than the Monoprice machines but how many has Make Haven purchased in the last few years? I know of at least one that's seen the dumpster. The older I3 definitely needs some love (at least a new build surface).