Well in many ways it's one of the better places in the world you can live. Just not if you happen to like sports cars and are not very well off. That and the housing market.
One way around this is live abroad for 12 months, buy the car there and then move back to the Netherlands. The car will be exempt from taxes as far as I know. Given how small the Netherlands is, and depending on how much you might want to skirt the law with actually living abroad, you could (all theoretically of course) get away with just paying a couple of grand renting some student room just across the border.
Edit: I never looked into the actual rules/laws too much, but at a glance it looks like there isn't any limit on the amount of cars you can bring with. The only caveat is you have to own the car for at least 6 months before moving back and you can't sell it for a year after moving back.
In the past I always wondered if that means it would be possible for multiple people to fund somebody to live in Belgium or Germany for a bit, buy a dozen or so cars, move back and "sell" them. Given that even a Cayman or Emira can easily be 40~50k cheaper, that could be a golden business.