We never throw any pot away unless it is broken and useless. The quality of pots make no difference with few exceptions. I use cheap pots from nurseries that people usually just toss after they plant the plant inside. I use plastic drinking cups too sinc they are really cheap. I just stack them and drill holes in the bottom of several an one time.

I would suggest that you don't use peat or choir (coconut fiber) pots. They are poor for transplanting and inhibit overall growth. The only breathable and soakable pot I would suggest is the smart pots. They are expensive but can be used for several years.

Get the cheapest thing you can that will hold dirt.