i juice the things you cant buy freshly squeezed - cucumber, celery, carrot, ginger. peppers, kiwi. fresh Grapefruit apple and pineapple are easy to buy.
I splashed out on an expensive juicer recently - made a huge difference, even down to the ease of cleaning it out. Does anybody else put the leftover pulp into soups?
I use wheatgrass powder, as I dont have a masticating juicer.