Never heard the 610 either, but I do recall people saying the 610 was the better speaker among the two.

Ya know; it's a funny thing about some speaker companies.

I was all set to plunk down a few bucks for a JBL HLS system;....but then they discontinued it and added a whole new line that nobody knew anything about!

.....and a bunch more lines since!!

So then I found Axiom; and they stood still long enough with one model line for me and lots of others to get a good look at and build up a good reputation around! They got the sale!

I wonder?

Are some speaker manufacturers set-up with planned obsolesence in mind hoping that their customers will upgrade to a new model every couple of years or so?

I wonder.