How important is it that you maintain a good availability record? I have a few RTX 6000s in a server that I use occasionally for NDA'ed contract work and for experimenting with open models, and now I feel stupid for just letting it idle at ~1 kWh when it could be earning revenue. I didn't realize that anyone would care to rent prosumer-grade GPUs.
At the same time, when I need to use the hardware for something, whoever is renting it from me at the moment is going to get unceremoniously booted, and I imagine they are not going to be happy about that. I assume that vast.ai's providers get uptime ratings that drive their work allocation, right?