I have two. Not a fan.
I have relatives that swear by them for sheep guarding (against coyotes).
Other than that, I believe alpacas have better wool. You can't milk them or eat them (or I guess more accurately, who would want to?). If you're into packing or using them as golf caddies:
(lol wtf)
sure, whatever floats your boat I guess.
But, in my experience, these are not touchy animals. On a species-basis dogs, cats, rabbits, horses, goats, parrots, rats, pigs, cows, crows, chinchillas and a bazillion other animals enjoy contact. The horses I know will all lean into a good scratch when tacking up, goats and pigs I've found to enjoy touching. When you watch the above mentioned species animals, generally, they enjoy contact with their own kind. They chew on each other, groom each other, etc. This transfers to people if raised right.
Llamas, not so much. My two like to be together, hate being seperated, but the most contact they do with each other or anything else is a sniff. Which is all fine and well, but seeing as how these things are only really good for pets and a conversation piece, you'd expect something a little more... friendly.
LDR - the Llamas This llama farm agrees:
As cute and cuddly as they look, unlike dogs and cats, llamas generally do not like to be touched, let alone hugged or pet. The llamas at Llama Deara Ranch, on the other hand, look forward to interaction with humans, will walk right up to you and kiss your nose, and nuzzle your hand looking for grain! Mutual respect, as in human interactions, is a useful component in communications with llamas.
Also, spitting. They do give warning, indeed. However, this doesn't count for much if, say, they get seperated and one of them is flipping out in a corner because it doesn't understand fences and is trying to get to the other one, and you know its going to spit at you but you have to move it, so the best you can do is shield yourself and go in. I'd rather have a kicking horse, at least you can manouver out of range.
Joyous creatures, alright.
They don't eat much and don't need to be shod, they've got awesome eyes and they
do make very cool noises (the alarm call, lol) but really, from my experience, I'd suggest getting something more worthwhile. Get a couple of horses, those are fun animals.