Yes, bargains can still be found in the stock market.How richly valued are stocks right now? Legendary investor Warren Buffett has built Berkshire Hathaway's cash stockpile up to roughly $277 billion. When Buffett is sitting on that much cash because he can't find appealing investments to buy, you know stocks are expensive. There are exceptions, though. In a market that's broadly speaking priced for perfection, three Motley Fool contributors have identified what they think are bargain stocks to buy: Axsome ...