100mbps guaranteed is not the same as best effort. Besides it's an average which would max out on bandwidth from time to time unable to process data at full spe

100mbps guaranteed is not the same as best effort. Besides it's an average which would max out on bandwidth from time to time unable to process data at full speed. And with that kind of cost, forget about individuals hosting. Also since each block is so huge, others miners will take something like 30+ seconds to validate a block leading to an unfair start on the next block. (5% of a 10 min sounds like some serious gain.)