[mst]

It's just me - I would not invest money in something elder if the newer has some advantages over it. And in Tamron's case, I definitely would opt for the later version. While if I should decide amongst Nikon, I would refuse the decision, the pricing is just higher than the value I can recognize.

I (personally) would consider it at least. There's a fairly wide-spread market of options ranging from very affordable (current generation Sigma and Tamron, used) to kinda pricey but great (Nikkor VR II) to "ouch" (current Nikkor). Not sure where the G2 would fit in there. All I noticed so far is their high claims concerning VC (5 stops... uff, might be handy for slo-mo action shots, like street chess...) and the obvious focus breathing.

-- Markus