Not sure what you mean by run-of the-mill experiences as color variants have little to no impact on the behavior/heartiness of a BTA. I have had a decent amount of experience with BTA and have managed to be able to get each of my nems to stay where I place them and been able to remove them and place them elsewhere in the tank. I have also successfully rehabilitated many BTA and have experience (as well as some tricks) picking color variants from bleaching nems and less experienced vendors (for example acid rain variants are relatively common at the PetCo in this area).
That said, named variants are should only be called that if they are cloned from the original. For instance, only clones from Gonzo's original should be called Colorado sunburst. I have bought a couple of the named variants and they do look nice and am a huge fan of aquaculture but I also have found a number of unique BTA morphs (as well as ones almost identical to named variants) without having to pay the significant premium.
Anyways here are some pictures (cell pics, next time I do a water change I plan to get pics with the dslr) of my current collection.
This one is a flame that I have almost fully colored back up, I have the hardest time getting pictures of it for some reason.
There are four nems in these two are true rainbows (one is speckled) the other two are peach colored with a nice green base and florescent green in the foot (the only two I have ever found with this). I have only seen about 1 out of every 100 roses come in with this coloration. (my large rainbow came from neptunes cove, mentioned by topoff, if you live near Dallas his in store prices are much better than online)
This is the best picture I could get of the green in the foot, its difficult trying to get the picture before the lights come on.
Keep in mind that these are not great pictures and LED lighting really messes with the brightness of the picture. The lightest colored rainbow (the largest one) was actually from neptunes cove and I paid a ridiculous price for it. In person these have a lot more pop. Anyways, IMO there are only three BTA worth paying the MSRP for and those are the Lemon Drop, a Gonzo Colorado Sunburst, and a Flame or Inferno BTA. Make sure who you are purchasing them from because they are easy to doctor in pictures. Personally I would not buy without seeing in person unless it came from the original clone.