Sarasa Gel Pen

I think I said before, my favorite pen for general writing is the 0.7 mm Gel Pen from Zebra -- the SARASA brand. Zebra just started TV advertising on the pen in Japan. When was the last time you saw an ad for a 100 yen pen? Does this mean that no one is buying these pens? Or that they finally realized that they have a good thing and are going to take over the world with it ??