I cannot say I am impressed with the release of these balls, not because of price but because of performance.
Simply, equipment is getting too good. So scoring will continue to get lower or other influences will get greater.
I have not tried them, and probably will not, as they are aimed at the better players who NEED them to really compete. That is the sad reality for players competing in RGs.
And this is where WGT has done their math, they know there are a lot of players willing and can afford these balls. After all the vast majority of the better players will have a large accumulation of credits.
Has the company become greedy? That depends on your point of view, but all releases lately seem to have a premium attached to it, but again, most of us strive to compete to a degree. But for pixelated balls at $7, no thanks from me.