As far as the show goes, just be sure you are buying from someone who gives their snakes water and good care at shows! Also, someone with good rep will tell you how best to pack the new guy/girl up so it's well protected and then when you get back, just give it a good week or so to recover. I always wonder if they get carsick, poor things!
I LOVE spiders and I hate wobble! There are some lines that are far less wobbly and some that don't seem to wobble most of their lives. This is just a matter of buying from someone who is a good honest seller. And most spiders don't seem to have anything other than a wobble, so I'm kind of on the fence about whether that bothers me or not. I think if i found a smoking bee with little or no wobble from parents who were low or no wobblers i would probably buy it! It seems like low wobblers throw low wobblers, but that is just my limited experience. It sounds like it is very rare to find a non-wobbling spider, but I cannot say I have researched this subject too much. I SAY: look for a good bee, but keep another morph in mind if you do not find the bumble of your dreams!
clowns and pins are cool. Not my thing as much as the look spiders have, but they don't have the wobble, so def. a plus. I like stuff like fires/vanillas that enhance colors on other morphs. I think the co-doms like yellowbellies and lessers are indeed neat for making pretty white snakes, but they just look cool crossed with pastels! I'm ALSO sad you missed the calico, I think that would be my vote for a bee runner up, although they seem a bit pricier now? I'm not sure, but they are sooo awesome!