Yup, this many frequent half price sales just screams "clearing inventory."
I have given up on trying to predict when these will run out/discontinue!
The 530's have been gone for for quite a while (I'm thinking close to 2 years?) and they are suddenly back on the shelf!
In a way, it is surprising that JBL has't introduced a mk2 version, but the nice thing is these are now being discounted as if they were the previous generation.
We did see an update with the JBL LSR 305 monitors on the pro-audio end of things.
Maybe since they lost so much of their design staff they are just milking the old designs for as long as people will buy them. Certainly all research and development costs have been recouped by now, so that may be part of the reason they are readily discounting them.!
They are also bypassing the traditional distribution costs! AFAIK, they are only selling them direct and through high volume retailers like NewEgg and Amazon!