I'm not too sure if the figure is around 45 but something small like that may be the break even number for EU Jet considering they only pay the set of landing fees at their destinations and not Manston!
If so, then yes, 45 would be successful.
And BTW, they only survived the winter because of a cash injection from some ill-advised investors who still reckon EU Jet will last.
Once that money has gone they may also. They need to start advertising the crap out of themselves in order to create a brand.
I'm in London a lot and I have only seen one EU Jet advertisement, and that was in London Bridge station. They need radio, and billboards everywhere. If they're worried about the price, they won't have an airline by next xmas.