These are not financially identical at all, at least where I live. If heating breaks down, it is landlord's financial burden. Sooner or later you'll have to replace the roof. You don't have this type of financial burdens if you rent.
My head is still very much turned however by the fact that rents rise with or above inflation every year, meanwhile I'm still paying off my mortgage in 2012 pounds. But I'm quite willing to believe I'm behaving irrationally.