i have mixed feelings on this whole issue.
on the one hand, i get that having an idea outright stolen is a huge problem. i've never made my living from my creativity, but i dabble in music as a hobby, and if someone stole a song i'd written i'd be very upset, whether i had ever made any money from it or not.
on the other, there's a lot of hair-splitting that goes on when it comes to intellectual property. if you have a really distinct piece, you probably can protect your work, but if it comes down to "scary skeleton doing a thing," you won't get much legal protection. and for good reason--there are a lot of original, non-stolen ways to do "scary skeleton doing a thing," and if the first guy to do it owned the entire concept, it would kill creativity.
allowing "knock off" versions also gives people the chance to enter the market how they see fit--i may pay $50 for a lower quality version of an item that i wouldn't pay $250 for a higher quality version of. but if the higher price is truly worth it, there will be a market for the higher quality piece. compare it to guitars--there are a lot of companies making cheap electric guitars that more or less resemble a fender, and are just different enough to not be stealing fender's ideas, but fender is still doing okay selling their better versions.
i also am not sure how i feel about us stealing an idea being better than a company stealing an idea. either way, we're taking a sale away from the company that originally made the product. are we upset that the company mass-producing is doing it on a large scale, or just that they're gaining financially, or that we're passionate about it as a hobby and they're not? i'm not sure the original maker cares much, as long as the end result is that they lose sales.
bottom line: vote with your wallet. sellers only exist in markets we create.