I don't know if I am strange or not, but I have a hard time on a multi-day trip with just two pairs of socks.
If conditions are relatively benign, you can reserve one pair as "sleeping socks" and one pair as hiking socks. I also find socks get extremely dirty over the course of a trip (this is especially true with shoes with a lot of mesh and in warmer, dustier conditions), it is nice to be able to wash socks and dry them out while hiking. If you are putting in long days, it is a great idea to be able to change into less-dirty socks mid-day and wash out the socks you've been hiking in.
I also find a variety of socks helps match conditions and conditioning better. My feet can swell up quite a bit in hot hiking, and having thinner socks to wear then can make quite a bit of difference.
Unless it is just a quick one or two-night trip, I like to take at least three pairs of socks, sometimes I take four pairs for longer trip when it is likely to be very wet and sloppy.
For liner gloves, cheap thermax gloves from wal-mart or a hardware store (since I am a long, long ways from a wal-mart, thank goodness) work just as well as spendy smartwool liners, plus the smartwool liners tend to pill over time, producing merino-flavored trail mix and clif bars. If you want something fancier than the plebian wal-mart fare, sporthill makes a nice lightweight glove for about twenty bucks. I don't have any business connection to Sporthill, but I like their stuff.