I'm in the "3+" category.I do not believe reptiles can show higher level emotions or that they can feel love at all.
However, that being said; I am not insecure enough to apply anthropomorphism to my reptiles. I do love my animals, all of them, even the Tarantulas. Not for a second do I think it is returned from a invertebrate or reptile. If I wanted an animal to show emotion and love me, I'd get another dog.
Keeping snakes in racks or the number of animals we have, has nothing to do with how we feel about the animals. Most people simply do not have to be fulfilled through false pretenses.
Just my opinion.