550mW lab module, maybe interesting for scanner DIY ?

[HIMNL9]

Hi, just tripped on this searching other things

550mW 532nm GREEN LAB LASER MODULE WITH POWER SUPPLY - eBay (item 170420740863 end time Dec-22-09 14:38:51 PST)

Does this seem a good price ? ..... i don't need it, but maybe can be useful for some other users that are searching parts for scanners.