I'm not sure how many people here use Reaper paints, but they currently have their latest Kickstarter going, and two of the add-ons (1 unlocked, 1 not yet) are paint sets. You get 12 paints for $20. And since they are add-ons, you can just pledge $1 and then add them. It might be a good way to stock up on some paints, especially for people just starting.

https://www.kickstarter.com/projects/1513061270/reaper-miniatures-bones-3-the-search-for-mr-bones