Yep. I no longer care about partial fills, scattering a position in a stock across multiple accounts, etc.
Got an idea? Throw $10 at it just to see if I am right. Proof-of-concept trading.
Get a runt fill of 100 shares on a 100K share order - no problem.
Got $23.15 sitting in account? Why not buy 1000 shares of some pinky trading at .02315? Or 10K shares of one trading .0023?
I have one account where the total value of the account is around $100. I trade it actively every day - $5 and $10 trades - just to document what I was thinking and track whether it proved right.