I know this is an old thread but our experience today makes you think
We looked at the list of cheap deals using the "cheap flights" link on this site
and saw a Thomson flight under the agents Holiday Express for Thurs 17th May Gatwick-Dalaman 7 nights 2 adults for £345 return incl meals which we thought was good as we paid about £375 for 2 last year.
We were about to book it but the system gave us a link to the Thomson website so we tried that first.
On their own website was the same flight out and back for £245 for 2 adults incl meals so we booked it online today.
If you shop around the flights are definitely more competitive and cheaper than last May and we saved a further £100 by going straight to the airline as opposed to an agent.
It drives you mad online but £122 each for a return flight with meals to Dalaman that late in May has got to be a good deal. We found out that this was a special deal only online but it shows they are out there!!