$1k MRR means you get $1000/month revenue, but if your costs are $900/month you're not going to be living anywhere with that money! (And that's obviously ignor

$1k MRR means you get $1000/month revenue, but if your costs are $900/month you're not going to be living anywhere with that money! (And that's obviously ignoring other costs, which might not be monthly. e.g. supplies, hardware, domain-name registration, etc.) Of course the hope is that costs fall, and don't scale linearly with revenue. Allowing actual profit in the future.