Liquidity provides mobility - there's been a couple times in my life that I'd have converted to any religion on the planet if their chief deity promised me a buyer at even half the market value of the asset I wanted to sell.

People don't want liquidity the same way they don't want a tune-up in their car. Nobody wants "a tune up", but people want a working auto that doesn't break down. No one wants liquidity, but a heck of a lot of people want to sell something they have so that they can get on with their life, move somewhere else, buy a new home, invest in something exciting, and so on. If you think freedom and mobility are valuable, then liquidity is valuable too - because liquidity can be very important in letting you do go where you want and do what you want when you have something important you need to sell or relinquish before moving on.