Altria (NYSE: MO) recently raised its quarterly dividend 14.3% to $0.80 per share, which boosted its forward yield to a multi-year high of 5.5%. That big payout, coupled with Altria's low forward P/E of 13, makes the company look like a tempting income investment.Yet Altria's stock also declined nearly 20% this year due to ongoing concerns about waning cigarette sales and tighter government regulation of tobacco products.