I agree there is not much money to be made in boarding. I board a few because I have space and it’s good for tax reasons but the actual income is negligible.
clanter, pellets are $5.95 here at the store and only occasionally come down to $5. I wish they were $4! My bedding costs are significant when I have horses in, so I also keep them out as much as possible. I am a good stall cleaner but I have a couple of horses that are TOTAL PIGS and they go through ten times the bedding the neat horses do.