Edit to add: 2 years from now, who has a fatter wallet, 100 bitcoins or 10,000 monero?
As a long term holder my feeling is yes. First as has been pointed out before 100 XBT will get one well over 30,000 XMR at market. So 30,000 rather than 10,000 is the more relevant number.
The problem I have with Bitcoin is that the reality is very different from the original idea of a fungible digital currency that anyone can use to pay anyone without the need of an intermediary or "bank". This is primarily due to the fixed blocksize limit which currently restricts the number of transactions to about three transaction per second. There is simply no opportunity for growth in Bitcoin since stagnation is hard coded into the protocol via the consensus code . This has led the a bear market in Bitcoin now over 27 months old. I see the downside in Bitcoin to be very real with little or no upside.
Monero on the other hand has an adaptive blocksize limit. This means that there is no three transactions per second limit hard coded in the consensus code and consequently Moenro has a very good upside potential. Yes there is downside to Monero also; however I would consider it comparable or somewhat less than that of Bitcoin.
The risk to reward ratio becomes an upside many orders of magnitude higher combined with a comparable or somewhat less downside. My current position is a mix of Monero and Canadian Dollars with very small Bitcoin and Namecoin positions. The Canadian Dollars provide the necessary liquidity.
Appropriate disclaimers are needed here. This should not be considered investment advice. Investing in crypto currencies involves extreme high risk and the possibility of loosing the entire amount invested. It should only be undertaken after doing one's own independent research and obtaining appropriate independent professional advice.