There really should be more in Europe, too.
Best case scenario could probably to just have 2 nationals for each country, actually. This year only 2 people from each country got to San Diego, which was 6 from 3 countries and that isn't really any good. Especially when the US got 16 people. Have a north and a south national for the European countries, 2 getting to the worlds from each, and there you have a nice round 12 from Europe, and probably with a lot more people turning up to each event than before.
It'd save so much trouble for everyone in Europe. While the distance to London for me is only 200 miles, it costs a lot of money to get down there. I went by car with about £50 in petrol costs iirc; the motorways are very busy and the petrol prices are several times higher than in the US, also train tickets are expensive and the trains unreliable from my experience with them. As opposed to the freeways in the US, where you can go fast along the open road and where fuel is cheap, in the UK you're looking at hours sitting around in the car, barely moving, surrounded by lorries, so bored out of your mind you're looking to see how many Eddie Stobarts you can spot. On a probably rainy, basically featureless 4-lane motorway that's enclosed in a sort of ditch lined by manky pine trees. Not even mildly interesting roads like you get in the US, where you see the occasional tortoise or something at the roadside. Anyway, it took a whole weekend and around £150 for me to get down to the London VGC. If they'd have held a second UK qualifier in Manchester for example, that would've made the tournament much more accessible for everyone north of, say, Birmingham, and actually plausible for any scots or welshmen.
So yeah, while I'm aware that the distances in the US are so much larger, travel is also much easier. And on top of that, in the US people generally do travel more. Most people I spoke to about the VGC were very interested until I told them it was in London, then they just couldn't be arsed. Somewhere like Manchester would be an ideal location, being the other location in the UK (the other is London) to have one of those LAN gaming places (it's on the bottom floor of HMV iirc), so there is an active gaming community. The French and German ones would probably be similar. Marseilles and Munich would make sense but I've never been to either of those places so yeah.