I say scorpions, but I've only had a Rose Hair so I wouldn't really rely on anything T related from me.

Scorpions are neater to watch IMO, plus they have some very unique species out there(which I'm sure T's do as well). Overall T's are probably more popular then scorpions but hopefully scorpion popularity will grow. As far as feeding, you don't need tongs, you don't need anything, just put the food in the tank and watch. Scorpions have thousands of hairs and they can feel anything on the ground so you don't have to actually feed it to it's face. I would also recommend keeping a simple setup for your scorpions as all the fancy stuff is pretty useless IMO of keeping 60+ scorpions, especially when you want to clean or if you can't locate your scorpion and it's just not worth it.

I'm familiar with all the common scorpions in the US pet trade so if you need to ask anything then feel free to message me or even email me, I also use yahoo daily.

ATM I only have one scorpion, because I was working offshore for awhile so I had to get out of the hobby, but I'm about to get deep back in it with species that have never been introduced into the US before, as well as Europe. I'm going to focus mainly on two species that I've been wanting for years, but I will keep a few other of the neater species.