Bamboo is a hardwood, equal to or greater in strength than oak. As with any product, there are variables in quality. See article link below.
I would be careful in listening to the nay sayers that bamboo is 'out'. It is just getting a foothold in most areas of the county. Places that are more environmentally concious such as Seattle, Austin, So. Cal, bamboo is in high demand, and most homeowners want bamboo if they don't have it.
As for Realtors, most agents that work full time and are selling more than 12 properties a year are in the know. They do know what is selling, because they sell it all day long. As in any industry, there are rookies, and there are pro's.
[DOC] Zero Waste—You Make It Happen! Bamboo FlooringFile Format: Microsoft Word - View as HTML
This fact sheet is neither a full life-cycle analysis of bamboo flooring nor an endorsement of any ... Without a single standard measurement for durability, ...
http://www.ciwmb.ca.gov/Publications/GreenBuilding/43303017.doc - Sat Feb 23 2008, 21:00