When watching games again from the 70's on Big Match Revisited, Maine Road doesn't actually look too bad compared to most other top flight stadia of that era. Chelsea fans conveniently forget that their ground was an absolute shithole then with average attendances of just over 20k by the end of that decade and into the eighties. Our problem was that Swales had champagne ambitions for Maine Road but beer funding. Consequently, we ended up with a patchwork quilt of a stadium with none of the stands matching. If I remember correctly, the steelwork went in under the main stand roof in readiness for executive boxes at one point only for the money to run out! For all its faults, we still loved it of course.
also manchester city was one of the first clubs at maine road to have undersoil heating