Samsung 830s specifically have been fluctuating a lot due to the coming release of the 840 series.
I was able to pickup an 128GB 830 for 73$ (inc shipping) last week from Amazon (who seems to be beating newegg pricing on them). A few weeks prior to that, newegg had a deal on the same drive for 90$, then raised back up to 120$ for a few weeks. Keep looking diligently on amazon/newegg, you will see them show up at the lower prices, be ready to snag them immediately if you want to buy; once they stop getting shipments of the 830s, which I would suspect to happen in the next month, you won't be seeing these deals.