The NAMAC organizes for over 30 years six times per year a swapmeeting for scalemodels, books and leaflets. "Houten" (as it is called named after the town name in The Netherlands where the meeting is held) covers more than one kilometer long tables and is with more than 4000 visitors the largest in Europe. Attracting dealers from the Netherlands, Belgium, Britain, France, Italy, Germany, Czech Republic and some other European countries are present here, so something for every collector to find.