It does seem to me that the key is not just the hard work required to organise everything, difficult as that clearly is. We do have hotels over here, and all the other stuff required. What we do not have, as far as I know, is any active UK based APUGger who has their own commercial gallery/processing/darkroom space. These can all be hired of course, but at a cost, and setting everything up in an unfamiliar environment multiplies all difficulties. So, unless a local UK APUGger can make a definite commitment to provide the basic location facilities in somewhere like London/Manchester/Edinburgh then I suspect that the logistical and financial difficulties may be too great to do all the other stuff too. If someone can provide the basic facilities, then the rest can be done with a reasonable expectation of success.
Actually, I do know of a company near Manchester that does have all the needed facilities (and you are unlikely to run out of film while there (unless you use Kodak or Fuji of course)

) - but even if they could be persuaded, they are a long way from central Manchester, so no drop-in visitors would be likely even if it could be linked to a local arts festival (yes, we do have those too - amazing innit?). It is very close to Manchester airport too...
Aggie's idea of Inversnaid (I think that's where you meant Aggie) is a great location but unfortunately it is 20+ miles north of Glasgow in the middle of nowhere overlooking Loch Lomond. Given the location, it would be a strictly APUG only gathering with no passing visitors.
I agree that given the APUG national mix, the US is probably the least worst location from a travel viewpoint.
But then... Toronto has been such a great success and now possess that most valuable of commodities: experience!
There is the possibility of smaller regional conferences, but would they be able to put on a sufficient show to attract enough people to cover their costs? Perhaps we in the UK could try something based around one of our spring or autumn meetings - making one day a more formal event with guest speaker/demonstration/gallery show etc?
On the question of flights: it costs from GBP350 to fly London/Toronto/London - about the same to most destinations in N. America - east coast a bit cheaper, west coast a bit more, but factoring in all the other costs it's of little practical difference. I can fly to most places in Europe for GBP100 or less.
Decisions, decisions... Whatever the eventual location, here's thanking all those involved in Toronto 2006 and good luck to wherever in 2007!
Cheers, Bob.