Lots of the farms around here sell their potatoes on the side of the road and the ones we've had all seem good quality, large potatoes and all between £6-£7 a bag. In my book that makes them pretty good value, in fact it's hardly worth growing them. I'm only going to grow early potatoes this year and wait until I'm more "on top" of the garden before I try and grow too many main crop potatoes.
Does anyone else grow many potatoes or buy them in bulk like I do and instead stick to a few early ones? What other veg are hardly worth growing due to how cheap they are (I'd be tempted to say carrots here but they taste so much better home grown and work out about £2 for seed that will grow almost all you need for 6 months!)?