Some notes from EasyJet land.
Actually EZY are a lot more sophisticated than suggested here. They now dominate the London to Edinburgh, Glasgow and Belfast markets, long the 3 major domestic business routes in the UK - they have completely driven BA off the last route. If you take them at 08.00 in the morning on these routes you will find them as well filled with business travellers as the equivalent BA/BMI flights at these times.
These passengers are certainly not paying the famous cheap fares, I assure you! (current on-line quote for a flight tomorrow afternoon to Edinburgh is £91.50 one way. Fare in a month's time is £6.50). Easyjet's cheaper fares keep the aircraft going off-peak, and those flights I suppose are those that get favoured by visitors from across the Atlantic, who then think it looks like a leisure market operation.
BTW - why are the mags handed out and then collected? Because the advertisers pay per passenger carried, but the airline pays for the actual printing. So reusing the mags again and again, preventing them being carried off the aircraft, saves costs. It also aids the 20-minute turnarounds because that is one less item in the seatback check that doesn't have to be done on the ground.