i remember that it was my entry point too as i started at $10 went to ~$30 then down to ~$2. and it stayed low for a looong time as i recall. and i kept just kept mining even at a loss at times.. but interestingly thats where the bulk of my stash is from, those early mining days when only the dedicated kept running gears. obviously it paid of handsomely.

so tldr version: keep stacking