If the restaurant industry is anything - it's fickle.  It's also making a great comeback.  On the list of what experts expect to be hot in 2012:  breakfast.

At the moment, the breakfast segment makes up 12% of total restaurant sales – or about $42 billion a year, according to research group Technomic.

But a.m. patronage is growing, especially at fast-food chains. The limited-service segment, which also includes fast casual restaurants such as Panera Bread Co., has added more than 230 new breakfast items in the past two years.

Most telling about the increase in breakfast sales:  money - or price as it would be - seems to be no object.

And such customers tend to be more immune than most to high prices: Most said convenience and speed is more important when it comes to their morning grub.