My thoughts are if something meets your needs, it is available NOW and is reasonably priced based upon what else there is and you can afford it, go for it. If you hold out until when the next product is anticipated to become available you want, guess what? You will be right back in the loop of watching something else announced that trumps it and you'll want that one instead.
Whether it be golf equipment, smartphones, video displays, blu ray players etc. etc. the next best thing only goes so far anyway!
Thanks Dopedangel for giving me a feel for what manufacturers one can generally trust with products coming to market versus others.