I took the plunge and booked Monarch for next July/August 2013 a few weeks ago, yes they are expensive but we have reduced our hols from 17 nights to 14 to cover the extra cost, my flights have actually increased in price since I've purchased them, Jet 2 lowered their prices when Monarch came out, Thomson and Thomas Cook prices are horrendous.
I think with the frighteners about TC and the demise of AegeanFlights cheap flights are a thing of the past. It still worked out cheaper than booking the whole package with TC.
I just checked the internet for cuurent prices for Manchester to
DalamanDepart 29th July 2013 return 12th August 2013
MonarchStandard Night Flights £286 plus Luggage
Standard Day Flights £330 plus luggage
Extra leg room seats, 23Kg Luggage, Online Checkin Night Flights £374
Extra leg room seats, 23Kg Luggage, Online Checkin Night Flights £418
Jet2Standard, late day flights £319 plus Luggage
ThomsonStandard day flights £469 plus luggage
Thomas CookStandard day flights £542 plus luggage
Dave