I have recently discovered that you can buy a large variety of rather strong creatures for very cheap amounts. A character that is moderately specialized in handle animal can easily get a +15 by level 3. And for the price of a +1 weapon, they can instead get a Mastodon. This monster of a creature has 14 HD and can reasonably be combat trained by the character. This monster has a +20 to hit, and does a lot more damage than anyone at that level should be able to pull off. This problem could be made even worse if the character making the purchase has access to a spell like animate dead. These are much stronger than creatures at the level it would be castable, and make for cheap strong minions. (Ignoring story consequences.)
Is there something I am missing about these animals and why they are priced so low in comparison to other equipment and gear that is much less powerful?
Best Answer
The part you're missing is
I've played with a party who were really amused about the idea that they could buy an Elephant, and then did (and named it Bongo) and brought it along on their travels. The result of them doing this was:
In the end, they had it for probably half the campaign and I think it got into combat only once. The rest of the time, it was just a huge headache to deal with all the logistical challenges of bringing a Huge Animal into any kind of place designed for Medium Humanoids.
They really loved that elephant though, so I'm glad they bought it ;)