what happend with this ball? the yellow and pink seemed to hook more than the first two colors. now it seems the pink/yellow is already retired? 

was this a case of 'it's too good' for an entry level ball?

It's a case of new balls replacing it.

https://www.motivbowling.com/products/balls/light-oil/top-thrill-blue-green.html

https://www.motivbowling.com/products/balls/light-oil/top-thrill-purple-red.html

thanks. 
at a higher price point though.

Must not have been selling. Too bad, very underrated ball.

It did okay, they just refresh colors on the low end stuff every year, and the new ones have a little stronger core, intrigued about them, but won't buy one near term because my Pink/Yellow doesn't get a ton of use, but works great when I need it.