I'd bet dollars to donuts RAH marketing thought the E170 would be able to handle Aspen with no problems "since CRJs do it!" but that flight management really knew better...it just took this long to convince the right people it was a stupid idea.

Also, we're "not running out of the stuff" - at least not near term. Interesting how Peak Oil believers fell from the sky during the 2008 gas spike but have conspicuously been absent the last 18 or so months...