I agree, $300 sounds a little steep. I bought a brand new pair off
ebay for around $180 shipped a few years ago. You can get them much cheaper and new on
ebay. But if they came with a good box and a good solid brand amp, then I'd say it's a good deal if you're looking for some loud subs. I loved them at first because they got loud (when I was younger and was really into loud bass) but now I hardly play them because they're not clean sounding subs. They getting annoyingly loud for my taste now-a-days.
Just my 2 cents.