Yes or No: Buy in a Buyer's Market & Sell in a Seller's Market

[Jared C.]

"Buyer's/Seller's market" defined by months of inventory.

I believe it is best to buy in a seller's market, and sell in a buyer's market.

My reasoning: months of inventory creates price pressure.  Low inventory causing upward pressure on prices, even bidding wars.  Similarly, high inventory causes motivated sellers to accept offers below appraisal and prices are pushed downward.

I live in a seller's market (Seattle) and am preparing to invest in a buyer's market (Louisiana).  Now thinking about the price pressure, I'm reconsidering that plan.  I should buy what's rising, not what's falling, right?