Perhaps no one wants the 733s. What's the market like for an old 733 with the amount of aircraft being parked up there must be some slack in the system to get a good deal on a lease extension. If I owned a 733 I would rather have it flying than sat in a desert or a damp UK airfield costing parking fees than flying for a few quid less.
There must be a chance to go for it summer 2008 in the UK has been bad so people will want a better chance of something decent in 2009.
I say stick both the 733 into MME advertise like hell avoid the Ryanair ALC route and go for it.
The old saying you must speculate to accumulate, MME catchment where there's muck theres brass.
Good luck if you dare.