Why the heck do people keep breeding spider morphs?

[Oxylepy]

Okay random question after reading this thread. Do all spiders have the wobble? Would it be possible to breed it out?

Most exhibit the trait minorly (intermittent food shakes, rare odd behavior). A few have it really bad (food shakes every time, frequent odd behavior such as turning when trying to go straight). And some almost never show signs in their life of it.

Whether it can be bred out is entirely dependent on the source of the wobble.

Wobble is related to the line, but separate genetically: This essentially means that the wobble behavior is a separate gene that is related to the spider gene. If this were the case it would likely have already been bred out as in all likelihood half of spiders bred to other morphs would have the wobble.

Wobble is closely related but still separate: This requires gene crossover for it to be bred out. Snakes which rarely exhibit this behavior would likely not pass on the wobble, or the offspring would be the same (rarely exhibiting it). This is possible, but pretty unlikely as I recall people with spiders which don't/rarely exhibit the gene having offspring which do.

Wobble is due to the gene: This is regrettably likely. The way dna works is it codes for your body to produce protiens which then affect the body. That is how the color and pattern morphs work, they alter protien structures or amounts and that causes an effect in the creature. Now when one of those protiens also affects the nervous system or musculature in the animal, you end up with problems, such as wobble. Again, this is most likely the case with how thibgs have worked. It's possible that the range of wobble could be accounted for by the rest of the snakes genetics, or its own compensation for its disorder.

If someone were to try breeding out the trait the best way to go about it would be to select out the spiders with more wobble. This could be culling (which is questionable in practice to the point of being unethical), stopping them from breeding, or just not using them yourself. Ultimately if it were possible to breed it out, you'd have spiders which don't exhibit the trait, and a line of wobble-less spiders.