I'd like to point to one item that illustrates really well the impact FB has had on item prices:
Manslayer Duke of Lalune
Gaia
intentionally deflated this by making it more readily available when they rereleased the Midnight Whatever RIGs and put the MDoL up for direct sale. Before that point, it was sold pretty much exclusively in the exchange due to the price, which was close to 200 million LBP in the market when I checked it on the day of rerelease. After the rerelease, it dropped to a little over 30 million in the market and appeared to be holding fairly steady until this most recent release of FB. The LBP is now sitting at more than 45 million, which the graphs won't properly reflect, since they average the sell amounts and quantities vs the previous day's ABP.