But Dragon Ball as Saint Seiya always have a repaint in tamashii nations event, can do a special stage or something similar but it´s probably we have a repaint for this SDCC 2014.
If they do an exclusive figure for SDCC, they lost a lot of money because dragon ball has global impact, you´ll see in 2014.
In that list i see a SHMonster of 90cms, it is normal that they did limited quantities of this figure, because the market is limited.
In others SDCC you can see a lot of quantities of SDCC Ex in a lot of pages like anime-island, toyarena, toywiz, amazon, ebay, yahoo....It´s normal because these webs have a contract with bluefin, that they offer their figures to anothers webs or countries.