At this exact moment, I'd say it's a bad time to get into it. The difficulty really doesn't matter because there are always new alt coins to mine but the hardware is a different story. I've been piecing together a new rig and the prices of GPU's I've been looking at have jump $30-40 IN A WEEK, and that's if you can even find them in stock. On top of that newegg is limiting the number of GPU's you can order to one (at least on the gigabyte 10 series I just ordered). Everything may change tomorrow but for today you better expect some headaches when buying the hardware.