It's the one thing that's a little iffy. If you want to hunt for an expensive transformation, you tend to ignore transforming early and hunt down the "points obelisks" until you can afford the form you want. For what was available I liked the crocodile form the most, at 2,500 points. The "early form unlock grind" would be grossly intensive if new forms were more expensive.You unlock options to swap body parts later in the Beta, so unlike the UE4 builds, you can't do any customization out of the box.
It makes sense to maintain a map for where the obelisks are found after each release.