Speed and time are relative, DVD players came down in price quickly because of the demand, but it still took then a while to get into the sub $100 market 10-12 years, then a few more years to get to drop further. But even 20 years isn't that long to wait for new consumer technology like this to drop in price, and within that time period the price should come down rapidly. Yes the price will not be $100-$300 next week or next year but within a reasonable amount of time the price will come down.
Speed matters to some and will improve over time as well. Most of the people here should remember dial up and how expensive it was and now pretty much everyone has cable if it is available, but people still used that dial up Internet because it was a useful tool. If it took a couple hours and a $40 spool of media to create a couple hundred dollars worth of custom fake aquarium rocks it would be time well spent.