I agree, XRP is the only "cropty" (if you want to call it that) that makes sense. The Ripple service will be used by all banks eventually. And because it can't be mined (tulip mania) it will never go very very high and crash, but should be treated more like a long-term investment. Hell, mining for BC is responsible for halve the global warming considering all the power it uses. Now that mining is slowing down, worldwide temps will come down.  :-)