You have no idea how many people who are usually not running fans are actually talking about running this week, going on and on about the record. You have no idea how much it turns them off to running when you have to say "Well it doesn't count because some people came up with some rules that make it inelgible, there was a tailwind, it drops some (despite Boston being well known to Joe Average for Heartbreak Hill)" Call it the record. Part of marathoning is about getting lucky with conditions. Geb set his record with damn good pacing and perfectly cool weather, you gotta get lucky.