As manufacturing businesses go that is pretty cheap, actually. How much do you think it would cost you to set up a business making anything else?
Or maybe you'd like to open a shop of some kind, how much is the set-up and stock going to cost you, do you think? Restaurant? Pub? It costs money to set up a business.
Maybe they don't want to have the beer brewed in Belgium, but then again, maybe they don't want to bother brewing beer at all and all of the mention of a brewery, once they get the visitor centre up and running, is a case of “sure I'll marry you honey, it's just a bad time to leave the wife, that's all”.
No matter how much funding you can get for a visitor centre, you won't get 100%. It is still going to cost you money to set it up. If they were interested in brewing the beer themselves, setting up a brewery would be higher on the agenda than a visitor centre.