Coins with a very, very low supply can achieve per-coin prices much higher than BTC. For example, there will only be 42 42coins ever produced. The coin itself is dead and nobody likes it but each coin is still priced at 5 times that of BTC. It's currently priced a bit lower than bitGOLD but it was much higher in the past.

http://coinmarketcap.com/currencies/42-coin/