Any sort of 4-core, 8GB RAM, Nvida 1030 PC will should be fine for multiboxing at the low resolutions and graphics detail that we put on our followers (up to 1080P). You can find these sorts of systems used/refurbished for $150-$250 if you look around, maybe 2x that much if you go new. I've paid more than that for keyboards, so its not super spendy. But yes, not as cheap $5/month