Hello everyone pretty new to this.  I want to start mining and actually got my computer setup to try it with Dogecoins.  Seems cool but I guess my question is what is worth mining?  Seems to me that mining a bitcoin is pointless.  I would spend more money on a better rig and electricity.  My current rig isn't bad but seems like i would needs some r290x or something instead of my gtx7 series.  Is there any one coin that i should be looking into?  Thanks again.