Haha funny you mention that, as this is exactly what I started doing. Before I wasted so much Steem promoting things with around 15 to 30 Steem dollars thinking that more is better. Once I realized you are just competing with the people in a given thread I started putting only .05 Steem on a post and depending on the category it was at the top. I post a lot of automotive content and right now there isn't any competition so if you put even .01 Steem into a post to promote it, you will find it at the top :-P