Looks like there margin of stock has still well. except 512G.

Akiba's PC Parts Watch (Plextor M5 Pro)
http://akiba-pc.watch.impress.co.jp/...14_553218.html

PC DIY SHOP FreeT / Faith / SOFMAP / Ark : 512G selling very well. it's cheap.
TSUKUMO eX. / Twotop : 256G has popular. some sold out.
DOSPARA : Many people buy two drives. for RAID?
ZOA : 128G selling fairly. 256G is not in much demand.
Pasoconhouse Toei : Order? Stock? Had not seen the e-mail from distributor. HAHA...