Ehh maybe.

After some serious calculations using average prices/stuff.. the maximum you can make mining would be about 16k per hour. That's if you 1 hit every single rock, have flawless lag, don't miss any rocks, and don't stop at all.

Under these perfect circumstances you'd make about $800 in 3 minutes.

Try again, nice mining level though.

Here's a minor improvement, I updated the advertisement board to do something that's actually useful. Just say /mall in game.

http://i40.tinypic.com/6ris1g.png

Add a sell button and a buy button to that window and scrap the whole mall.

http://i39.tinypic.com/2ms5a14.png

I updated the mall tonight, you can now sell items in quantities.