Yes, with Linode and other VPS providers we get good amount of bandwidth quota. Also if you have 2 instances running then they combine the monthly quota for you

Yes, with Linode and other VPS providers we get good amount of bandwidth quota. Also if you have 2 instances running then they combine the monthly quota for you. But, how much network capacity one can use is actually limited by the network connectivity the machine offers. For example, the $20 a month VPS on Linode offers only 250 Mbps connectivity (outgoing bandwidth). So as soon as you saturate that, you need one more VPS to handle the load. So this leaves a lot of bandwidth quota unused. Especially since in the real world traffic tends to come in spikes. AWS is similar, depending on the instance size the network connectivity differs. This makes the calculations for estimating costs for hosting even more difficult.