Pricing is going to depend on the product. For my SaaS I ended up going with usage-based pricing and am quite happy with it. 1. It aligns to my costs, so I'm n

Pricing is going to depend on the product. For my SaaS I ended up going with usage-based pricing and am quite happy with it. 1. It aligns to my costs, so I'm not too worried about abuse. 2. It allows servicing "small" users, there is no need to jump onto a recurring plan. You can just buy one package of "credits" and use it for years (or even just coast quite a while on the free trial). However I think there are downsides with the usage based pricing as well: 1. It discourages using the service. If each use costs money it is a small hurdle to clear. Even if it is cheaper most users will "feel better" with unlimited or pre-paid packages as they are using what they paid for. 2. Predictable cost to the user. 3. Can often be more profitable, especially for small users.