LAS VEGAS--There were e-readers aplenty at the Consumer Electronics Show, but there's substantial doubt if there are enough interested buyers to go around.
Amazon talks up the Kindle as its best-selling product, but even the market leader won't say how many digital readers it has sold. Sony has long had its own readers and Barnes & Noble has jumped into the fray with the Nook. But it hasn't stopped there.
Plenty of other would-be rivals showed up at CES, each hoping to make a name for themselves. But, that could be tough, analysts say.
"Just being … Read more