it depends how you define technology but the new phantom putters with multi-metals will be the start of many new nextgen technology putters...

IMHO, I always say if you like your putter and your making putts keep it in the bag!

Technology and materials have definitely improved. The real question is, "HAVE YOU"?

If you're holing putts, keep gaming it. I'm gaming a del mar buttonback from 2011. I change the grip every couple of years and thats about it.

As I heard over the years, it is the indian, not the arrow. Sounds like you have rather good putting skills. Some have a large collection of arrows. Keeping the golf industry in business. I play in a senior men's league and there are a couple of guys that use the original Acushnet John Reuter bulls eye (I have one, original grip, and they seem to be gaining in value) and the png scottsdale putters. That slot in the pings makes that crazy png sound. Those indians hold their own on fast greens.

A putter can last a lifetime if it works for you.
Be careful. I've seen a lot of golfers get a new putter, and a few weeks later they are back to the old one.

Putting is subjective. Everyone has a different style and mechanics that influences putts. Be honest with yourself and contemplate if you think new tech will save you strokes. If you’re someone that spends less than 20 min a day on practice or only plays once a month or less, I would say that buying a new putter just to have the latest and greatest would be fine but don’t expect better results. Seeing improvement in your game depends on what you put into it. I for one am a 10 + handicap. I spend hours practicing my short game (my course management and determining yardage kills me) but I don’t think buying a $600 L.A.B putter is going to get me to scratch or anywhere near it. I usually buy putters and wedges at a huge discount from new retail prices.

Hit em straight!!