William18, I don't think Edinburgh playing at Murrayfield has anything to do with not wanting to offend any football team. To be honest i don't think Hearts or Hibs (the two football teams) would want Edinburgh playing at their stadiums every other Friday evening as it would destroy the pitch. I think it has more to do with the SRU saving money and having Ediburgh play at the SRU's own stadium. It is a shame though as the set up the Glasgow have at Scotstoun is ideal at the moment and with two temporary stands up the other week got a full house of 10,000 against Munster. If Edinburgh's biggest crowd was about 40,000 odd in the Heineken cup a while back, but even a crowd of 10,000 looks lost in Murrayfield. Hopefully the possible branding of Murrayfield, which would wipe out the SRU's debt, would help with a possible new home for Edinburgh.
And ignoring Murryfield for the moment, Glasgow itself as a city has three stadiums each with 50,000+ capacity. Hampden, Ibrox and Parkhead. It's not very efficient I'll grant you, but having those facilities in one city has lead to Glasgow getting the Commonwealth games this year.