An IPO is like a negotiated transaction - the seller chooses when to come public - and it's unlikely to be a time that's favourable to you.
Warren Buffett[Gold] gets dug out of the ground in Africa, or someplace. Then we melt it down, dig another hole, bury it again and pay people to stand around guarding it. It has no utility. Anyone watching from Mars would be scratching their head.
Warren Buffett