Replying to Line Step up?

My local shop has a pair of 2012 176 line step up's marked down from like $600 or something to $300. I already have bindings that I can throw on them (marker griffons) and I know the guy that works there so he said if I bring a boot and bindings and pay in cash, he'll mount them and everything for $300 straight up, no tax. Is this worth it? Or are there some better options out there online or something for the same price.
I was thinking of either using these as my new park ski (jumps and rails) and using my '14 line chronics for more urban or the other way around

If any of you guys owned a pair of step ups let me know how you liked them. Also does anyone know why they were discontinued?