I've been holding XRP for months now. Bought in early May for ~$0.20, held it through the massive rise to $0.40, and have been riding the downward wave ever since. Sold a few days ago at $0.278, and just bought back in at $0.22
Was able to profit a couple thousand XRP on this recent spike.
For what it's worth, I believe that XRP is has a great future. One of the few coins with a tangible, inarguable real-world application. Even more rare in that the development team is already working with financial institutions in several countries to realize the coins potential. XRP needs to be relatively stable. Fluctuations like what we have seen in BTC recently would undermine the Ripple system's potential. That said, i think XRP is a solid investment if you have a couple thousand dollars, and most importantly, can be patient!!
XRP is a long-term[/u] play. If you can be patient, I think it would be a mistake to not buy a couple thousand dollar's worth of XRP at the current price and just sit on it for a couple years.