Of course you should get that last IOTA. Playing with coins gives you a good idea of its strenghts and weaknesses. But only with funds you can afford to lose completely.
I am not totally convinced how IOTA's concensus system is supposed to work but Mr Market will test this.
Yes - the market will inform us sooner then we will know whether we should have gotten IOTA.@wekkel Indeed - I think it is good to participate but also to know the risks.