eoinok said "Always couldn't figure out why RE had this thing for Luton airport?"
Obviously no idea of the huge Irish catchment in north London and Luton!
Airlines like to fly to airports that fill thier planes and give good yields. Until RYR virtually abandoned Luton for Stansted in the early 1990's, Luton was the focal point for all low cost travel between Ireland and London. Virgin employed 2xB727's in addition to RYR's muliple BAC 1-11 rotations to Dublin, Cork, Knock, Shannon and thier ATR's flying into what were then rather rural regional airports. Britannia had 2 return flight per day to Belfast.
Planes were full of Irish travellers then, just like today!
http://www.airliners.net/open.file?i...to_nr=2&size=L