I get it, self hosting is fun (until user count is > 1), but I wonder how long a $6 VPS would be able to handle the same load before you'd "break even" with the cost of 4 Pi's, as well as the ~12W required to run them, as well as the 5-7W required to power the switch.
Assuming it's 20W in total, that's 14.5 kWh/month, which even as US prices of $0.15/kWh adds up to $2.15 per month. In Europe you're closer to €5/month (€0.35/kWh)
Assuming it's 20W in total, that's 14.5 kWh/month, which even as US prices of $0.15/kWh adds up to $2.15 per month. In Europe you're closer to €5/month (€0.35/kWh)