You won't get rich, thats for sure. Make money.. is anyones guess. There are SEVERAL metrics at work.
I did LiteCoin mining, had fun learned a bit, and even made a small profit that I 100% just sunk back into other commodities. So no .. i did not increase my dollars.
Bitcoin mining.. now pretty much is limited to ASIC mining devices. These can only do ONE THING.. mine BITCOINS.. unlike when they used GPU cards. Part of my whole plan was to upgrade my old AMD 6850 to something better . Now I have two 7850's and yes that is MUCH better!
Back to money...
you have to buy the equipment, which now has no value other than to mine
eletricity to run the PC, and the mining device (up to 300Wats per hour)
Electricity to then COOl the house as they can generate a lot of heat
wear and tear on the PC running the devices..
contrast that with the fact that the entire BITCOIN system is designed to pay LESS over time and to require MORE resourses over time.
In the mean time I use my system to provide processing power for cancer research. (Goggle Folding@home)
There are other ideas comming soon:
http://maidsafe.net/http://storj.io/both of these take the idea of P2P processing and transpose that for P2P data storage. Both have offered thier own digital currency, and allow for computer hobbistist to "profit" from offering their resources on the internet.
Good luck and have fun with it.