No argument if your comparing like with like.I think SAS early problems were unique and now over.
How many 737s do you see at LCY, BHD, SOU, GCI or even JER.The aircraft has a graet cabability at an amazing price--and most passengers find the cabin light and airy because of the 2x2 and decent seat pitch.
The aircraft has a great future--but it will not replace 737s on 2 hr sectors between major cities.