Snakes do not get boogers, sometimes some shed will get stuck on the snakes nose causing a clicking sound.
About the 'snakes are cheaper' subject. Absolutely not. They're considered an exotic pet, so you can't just pop into the nearest animal clinic to get it treated like you can with a cat or a dog. It can be hard to find an exotic vet and even harder to find one that is very good and trustworthy. Karma's vet is an hour and 30 minutes from where I live, but its worth it. Overall owning an exotic pet is hard work sometimes, I only have one pet that's considered 'common'.