Well, I am not sure we'll see 42 unless something dire happens. But I'd agree we're getting a bit on the pricey side. I wouldn't be terribly surprised if we touched $45 or $46 again, briefly, before we saw $55. But, you never can tell with momentum.
I don't think I want to sell any shares, but I considered covering a portion and maybe selling some puts. But, none of the options are very actively traded so it is hard to find a decent trade.