Max QF love your work, Keep the faint hearted out....
While we are shooting from the hip .....
Why would a LCC buy a an A321.
Because the A321 has extra "A" type doors these aircraft need to be manned by additional cabin crew, I am sure I will be corrected but I think a A321 needs at least 6 or 7 cabin crew to man it versus the normal 3-4 when you have the standard pax operated over wing escape exits...
From memory employing extra staff per aircraft is never been the operational model for the LCC.
I await the lambasting