But we like the desert! The beer is cold, the women aren't, and we have oodles of flunkies!
The downside is when you return to the real world, and spend 5 minutes infront of a door, wondering why the hell it hasn't been opened for you...
Edited to add a sensible opinion! I'm in favour of tower as a first validation, in large part because I think it makes for a better radar controller in the future. That alone takes co-location of TWR and APR. The biggest argument though, is that the relationship between TWR and APR is more immediate than that between APR and area. Admittedly things could be different in the London TMA, but TWR and APR are still the ones who most closely affect each others' work.