I am going to get these, but I will do it the same way I purchased the Universal Monsters cars that came out 4 years ago.
When they first came out, they were 50-70 dollars each! Now they are much cheaper.
I just picked up the last one I needed, a 1/24th scale Randy Lajolle Wolfman for $7.99! These are by the same guys who do the Muppet cars.
I think these cars are not going to appeal to the usual Nascar collector, so they will be available for about 25% of the current price within one year.
Just look on eBay for the cars from the past years and you will see that these do not hold their value very well.