Aeroflot equipment is wearing out and it is wearing out fast. The Tupolev factory does not make any more spare parts for the TU-134. Therefore, those of you that fly into Russia can see TU-134s in various stages of piracy or dismantling. I don't know for sure, but I think the same holds true for the TU-154.
Can you imagine going to the neighborhood junkyard to pick up a new set of unbalanced and untested engine blades while you have 200 anxious passengers already sitting aboard for eight hours. This has happened.
Maybe Aeroflot will buy Aer Lingus for GBP 300 million. Just planewise it would be cheaper than buying from Airbus or Boeing.