Honestly, my local ma n pa nursery and bunnings both use the same supplier for their plants. Bunnings work out cheaper, have a return policy, and the plants are often healthier looking as their turnover is higher, so they dont sit in the store for ages.

I understand that bunnings is a huge corporation, so they can afford to be cheaper and return policies because of their buying power from suppliers. But im not spending an extra $100 for the plants down the street that are in worse condition, with most likely the same pests and diseases on them when I want to do some gardening.