I love my yellow's and so do most people who come over and see my tanks The yellow's and demasoni turn the most heads people always say "the yellow and blue/purple ones are cool" and kids always go for the yellow's.. They even get called taxicabs from some friends kids being yellow and black..
And yellow's don't get big or nasty they'd be lucky to outgrow 4-5" and that would be a very very old one..
I can see why they're popular, they're bright yellow and black awesome colours, they're easy to breed, easy to keep, relatively nice natured.. All good!