You can interact with him, and hold him all you want, you just have to beware of the "love" nips, and not mind stitches and expensive doctor bills.
Really though, in all honesty, if it is "pet" that you are looking for, you are gambling no matter what montior species you decide on. Ive seen sweet tractable crocs, as well as sweet tractable BT's. Likewise, Ive seen both species display nasty dispositions as well.
Heres the skinny on it though. A Salvadorii gets to be roughly 9 or so feet. They are active, arboreal, and highly cunning animals. Salvadorii are best suited in very larger outdoor type enclosures. Salvadorii do not make good pets, and IMO should NOT be in the "pet" trade. Albigularis, on the other hand, are not nearly as demanding captives. Albigularis is generally more predictible in its behaviour towards the keeper(you), and is a more tolerant animal. The speed/ dexterity of a 6' albig, compared to a 6' Salvadorii is like night n day. Just look at their morphology. The albig is not built to be an ambush predator, like the salvadorii. Have you ever seen the skulls of these two beasts side by side? It would make you wet your tighty whities!
Personal testimony...
My 4' BT clamped on my thumb one day by mistake, and it bled a bit. My 6' croc clamped on my arm one day, and I had to go to the ER.
HERES A LINK TO SOME OF MY PICS...
http://gallery.pethobbyist.com/index.pl?user=50956&cat=500&thumb=1
