I'm in the Netherlands visiting my daughter and wandered into a ski shop in The Hague, as you do. They had a system for buying kids skis and boots which I'd never come across before and which I thought was a great idea and since I've seen a few posts asking about kids skis and boots I thought I'd share it with you..
Firstly you buy skis and boots (skis 229 Euros about $294 and boots 69 Euros $84) After a year or whenever inside 2 years you need them, you get a free pair of skis and boots as your kids grow. In year 3 you pay an additional 100 Euros for skis and 30 for boots. You then get another pair for free the following year.
I thought it was great. If it's a common practice, I apologise in advance for wasting your time. For anyone interested the shop was called Duijvestein. The staff were really friendly and helpful as well, a hidden gem in a surprising part of town.