Well maybe but the 2 series will be two series old next year and they are now discontinued products. The current series is the 3 series and, I guess, will come up as bargains next year when the new 4 series is launched. The 3 series have a good number of advantages over the 2 series but, in particular, Garmin have released updated software for them which will read the new g2 charts so they'll be able to read old and new. I have the 2010 and I like it but I'll be considering the 3 series next season.
However, I see Garmin as closing in a bit like Apple because they have developed their own networking interfaces for general communication and for sounder info which exclude the connection to non-Garmin devices. At present they still include an NMEA port. My 2 series has four NMEA ports but my latest unit has only one plus the CANet sounder network port. There aren't any manuals available for the new 4 series yet but I bet they move in that direction. If they do, for me, that makes the 3 series the one to have for maximum flexibility.