Thats too low, In ebay and bitmit the price of ripple is 3-5 btc per 50k XRP. I will sell you 25k ripples for 1 btc.
This is what I'm willing to give for XRP right now. The existing exchanges are not really dependable right now, there are too little orders. The future of XRP is also too uncertain to value it any higher for me, especially with the continuous giveaways that happen and are bound to happen in increasing volume in the near future.