As someone with three pet reptiles, I have no idea why people prefer furry animals xD
Reptiles can be expressive in their own ways, that are easy enough to learn if you try and look - My beardie is very obvious when she is happy, tired, angry or ill. She actively seeks out human attention, and yet will wander back to her tank from across the house when she is ready to go back to bed. She has preferred foods, and a basic understanding of amounts of them - She will sit and stare at me until her bowl has what she deems to be enough worms in, before chowing down. The gecko is more cat-like in her habits, and will come to you when she wants attention or is scared, and is haughty the rest of the time. The snake is still a shy little baby, but he's one of the most inquisitive little animals I've ever seen.
Plus the reptiles are all quiet (the snake is the loudest as he will rattle his tail when he's upset), very clean (they have dedicated spots in their tanks and will not use the bathroom outside of those spots), and while they may not form the same social bonds as a cat or a dog might, they have a cheerful indifference to being handled, and will love you as much as their little brains will allow if you feed them and keep them warm.