Not too late.  $30,000 should get you roughly $300/day in the current market.  If you where to invest, sure you could get 10x your investment, but if you have $30k in equipment that will hold value, even if the market crashes.  Once you pay off your equipment you can mine a ton of coins.  Its kind of a lottery at that point but my original mining setup of under $10,000 made me over 300,000$.