sometimes i feel the whole market resembles ponzi. things getting expensive because there is a promise of price rising and more people getting into the market.
it's also why we should be wary of anyone spouting "markets provide liquidity" dogmatically. equity markets do provide liquidity, but only a trickle is needed for a well-functioning market, but the gamblers (traders, brokers, etc.) propel a tsunami of liquidity[0], because that's what benefits the gambling mechanics. we should leave gambling to casinos and let equity markets be about involved ownership. i'd made a related point yesterday about each person having one appreciating asset to nuture is great, but not having many: https://news.ycombinator.com/item?id=31573993 .
[0]: a similar phenomenon occurs in real estate, where only a trickle is needed, but brokers/agents try to drive sales past the natural equilibrium for their own benefit, and not the market's.