It's interesting to see at what points in history did the cryptosphere (hey, did I make up a new word?) look almost exactly like today.
Looking at CMC, the price of Bitcoin is $268, Litecoin is $1.72, Namecoin is $0.52, and Peercoin is $0.40.
Looking at historical price charts, the price of Bitcoin on the 6th of November 2013 was $260, Litecoin was $3, Namecoin was $0.55, and Peercoin was just under $0.50.
Comparing today's prices with 6 November 2013, both Bitcoin and Namecoin are pretty much spot-on. Peercoin is very close. Litecoin is somewhat close although it's a bit lower than what you'd expect since LTC prices fell very sharply recently.
Links for BTC, LTC, NMC, and PPC, respectively:
http://bitcoincharts.com/charts/bitstampUSDhttp://www.cryptocoincharts.info/pair/ltc/usd/btc-e/alltimehttp://www.cryptocoincharts.info/pair/nmc/btc/btc-e/alltime (0.00225 BTC then vs. 0.001975 BTC today)
http://bitcointalk.org/index.php?topic=328639Same thing also with the 10th of April 2013. That's when Bitcoin spiked to $266. When this happened, the price of Litecoin spiked from a low of $2.25 to $5 in a single day, before dropping down to $3.20 at the end of the day. However, the price of Namecoin was about double that of today and Peercoin was trading at roughly the same price as today (but highly volatile against the BTC).
To some, this might suggest that Litecoin is currently very undervalued. Namecoin and Peercoin might be slightly undervalued too as they seem to have dropped in value in proportion to that of BTC. On the other hand, perhaps this might be explained by the migration of BTC towards newer cryptos such as Dogecoin, in which case they would not be undervalued and are simply losing market share.