What's a fair price?

Yeah, only local and they collect. Modules I will try to buy second hand, but they're not very expensive new. The biggest cost is the seed and the compost.

Selling online means I would have to buy special packaging for posting plants safely, which is an extra cost (I would have to buy in bulk to make it worthwhile), but also a massive waste of plastic, and I haven't found a good way of selling them without clamshell protection. eBay and Etsy feels are also quite high. I was going to sell plug plants on eBay but they're introducing new buyer protection charges which really cut into the profits on low value items.