each T is different but my son's A. genic isn't a pet rock. It will sit for a while in one place, but also responds to movement around it's enclosure. It is very territorial also. She won't let you fill or move the water dish, or move anything else in her enclosure, she'll slap the tongs, not climb up them. We have to distract her to the other corner of the enclosure with food to do her water She's only once tried to climb the tongs, but that was when the roach my son was going to drop in for her decided to run up the tongs alsoHmm sounds like both would be cool... A more active T would be a nice change of pace, but I appreciate just sitting there looking pretty too.
I just don't want anything that'll get super territorial or teleport up the tongs while I'm doing cage maintenance, lol. I think I can handle an enthusiastic feeding response and a bit of defensiveness or skittishness, as I'm already very cautious and never get too close.
The A. genic I saw was bigger, 4-5". I have yet to see an N. chromatus for sale but it's definitely on my radar. Just gotta see if I can persuade the husband that we totally need more spiders >_>
EDIT: those are some lovely T's you have BTW!!!
I don't have an N. chromatus anymore, but my N. coloratovilosus is like @Enn49 describes. He/she has a great feeding response and a temperament similar to the genic, but is almost always on the move. He's coppied Redrum recently and flipped his hide upside down to use as a lounger. She finally let me put her's back right (Redrum), but Duke won't, he keeps flipping his over.