I think another factor in the "how many is too many?" discussion is this. How much time/money are you willing to invest. I know many people keep certain kinds of pets as a hobby. Like, people who breed corns. A lot of people over on the spider forums I used to hang out on kept very high numbers of tarantulas, always swapping for breeding and collecting them. I think that's great, if you have the time/money/interest level to keep a kind of pet as a hobby. Same goes for keeping finches, tropical fish, showing dogs, or some kind of special dog training, or whatever.
Me? I already have enough expensive and time consuming hobbies. I happen to love snakes and tarantulas, and always wish to share my life with them, because I find them fascinating, but because my time is already invested elsewhere (work, family, the aforementioned other hobbies) keeping 2 snakes is just exactly enough. I get to enjoy them as pets, learn about them, observe, handle, and have them, without donating a HUGE chunk of my free time and money for maintenance. Once, I tried to get into tarantula keeping on a hobby level, and I enjoyed it for a time, but I realized that I was spending loads of money/time/house space, and the pets themselves became less special. Like, I cherish my Ts two now, and spend a lot of time watching them. At one time, they were just two of over twenty, and I was more collection focused. It really wasn't for me. I'd rather collect tarot decks or miniatures, than maintain and upkeep a collection of living things, but I definitely understand how rewarding of a hobby it could be.
So, two is enough for me, any more would be too much. Also, there's four people in our house. We have enough responsible adults and older children to care for the two each, dogs, and cats. The snakes and spiders are my pets and mostly my responsibility. The furred foursome are part of the family, and well integrated into our routine. Any more than that, though, and the pet responsibilities move from a pleasant routine, to a chore.
Me? I already have enough expensive and time consuming hobbies. I happen to love snakes and tarantulas, and always wish to share my life with them, because I find them fascinating, but because my time is already invested elsewhere (work, family, the aforementioned other hobbies) keeping 2 snakes is just exactly enough. I get to enjoy them as pets, learn about them, observe, handle, and have them, without donating a HUGE chunk of my free time and money for maintenance. Once, I tried to get into tarantula keeping on a hobby level, and I enjoyed it for a time, but I realized that I was spending loads of money/time/house space, and the pets themselves became less special. Like, I cherish my Ts two now, and spend a lot of time watching them. At one time, they were just two of over twenty, and I was more collection focused. It really wasn't for me. I'd rather collect tarot decks or miniatures, than maintain and upkeep a collection of living things, but I definitely understand how rewarding of a hobby it could be.
So, two is enough for me, any more would be too much. Also, there's four people in our house. We have enough responsible adults and older children to care for the two each, dogs, and cats. The snakes and spiders are my pets and mostly my responsibility. The furred foursome are part of the family, and well integrated into our routine. Any more than that, though, and the pet responsibilities move from a pleasant routine, to a chore.