As a Pax only who regularly travels to Southern Europe with my better half or alone and living close to LGW I always use LCC including RyanAir. Only business, City Centre to City Centre and Pax with needs such as disabled, golfers, high baggage amounts and people who think they can trust the M25,M23
, M4 British Rail to get them to check in 5 minutes before it closes etc would be stupid enough to pay the prices charged by BA, Luftwaffe, AF, Iberia Swiss Air etc.
If you travel light, book the flight and check in on line, arrive on time ALWAYS (which normally means early), do not want a free newspaper, plastic breakfast and care not what seat you sit in then LCC fit the bill. I personally see no future for shorthaul high cost carriers except as a niche market for business men and people who have to travel at short notice. I would only be purchasing shares in LCC's.
BobH