I've seen a really good offer for the 100-400 lens, it basically puts the price at £990 (uk price)

Now should I buy it? From what I've been reading is that everyone loves this lens, its versatile and produces great pictures but, correct me if I'm wrong, rumors float around about a possible mark ii or this lens?

I'll probably go ahead and buy the lens but is there any reason why i shouldn't?

thanks for your advice and comments.

A