I've just come back from a Thomson holiday with my 2 teenage sons.
To pre book our seats it was going to cost us £7 each, so £42 in total there and back. This annoys me (always has) that it's another way of getting money out of us, and puts pressure on families, so I decided to keep track of the seats available in the weeks leading up to the holiday.
So every few days I would log in and could see which seats had been booked and which were still free. 10 days before we were due to fly, the whole of the front of the plane was booked with about 9 sets of three seats still available towards the middle and rear - so I decided to leave it. My thoughts being - It's a 2 hour flight, I have older teenagers so if we don't sit together it's no big deal and I'll save myself £42
So we check in, I ask if we can sit together. And guess where we sit...?
Right at the front, the first row of seats that weeks before were TOTALLY booked. We had extra leg room, which with two 6' lads was a bonus!
On our return journey we sat in row 16 over the wing - again extra leg room.
I will NEVER pre book seats again. It's a total con.