Get something cheap or second hand. Prices are vastly inflated here and the quality, IMO, does not match the price, nor is it required for a bike that your child will only need for 1-2 years max and will not be using all the time either.

I think there is a bike sale, where people sell their second hand bikes, coming up on 28th Sep in Zurich:
http://www.provelozuerich.ch/compone...-helvetiaplatz

Get there at the starting time to get the best deals.

Edit: Doh, just seen Tom's post...