Trouble is - training costs money (paint, green fees, travel etc) so not many peeps bother (you can easily spend £50 very quickly). Most people would rather pay that money towards a tournament - and treat that as training.
Sorry to drag this post back from the dead but surely this is the problem paintball has, people would much rather turn up and play a event, which is 8 games or whatever and say that is training for a bigger event. You dont learn a huge amount from playing 8 games but it is more interesting than running drill after drill week after week, but this is what really improves your game. If you go to any training site you will notice the regular players that are there day in day out, yes they are usually the pros who have the support to be able to do this but the reason they are playing pro is because they put the time and money in.
People who just turn up once a month a play an event cant realy say there in it to get to the highest level they can or that they are pushing themselves as hard as they can to win because they have chosen use the money for an event instead of a training day, yes they could cost the same amount but one is more productive then the other.
So the choice comes down to what you see as value for money.
The fun of playing an event
Or using the time to better your game and maybe winning the event
(i started typing with a point in mind but forgot it half way through, sorry for wasting your time

)
Jay