Well for me its more reasonable to invest in smaller amounts thats because I'm still new in this trade/market. So if you are just still starting I would prefer you to start small and learn the basics of trading, than going to big investments which you don't have the knowledge yet. You can still get profits on small amounts you just need to be patient and learn the ways of trading its not hard when you learn them in experience. When the time comes that you know that you are ready you can increase your investments or instead you can use your earnings on your small investments to go higher. So its a win2 situation. So for me its better to go small then go big. Hope it helps