Well, in any investment that involves small incremental or progressive profits, the scale will always matter. Just like in agriculture, a large-scale investor will get high profits but he is at a higher risk at the same time. Therefore, it requires one to invest /upscale the quantities. Smaller investments are just careful or cautious kind of investment. The return to investors will be equivalent to the magnitude. But always remember to invest that which you can afford to loose. That is the rule of thumb.