Honestly I'm not expecting comgnet pre-orders for DQ Builder's to be as high as they could be. I think other retailers have exclusive pre-order deals and comgnet didn't have any. The goal probably isn't to just have front-loaded sales anyway with a title like this.
Found it:
http://gematsu.com/2015/10/dragon-quest-builders-first-print-retailer-specific-bonuses-announced
first print bonus : available everywhere, COMG shops included I suppose
square-enix eshop : online only, not tracked
amazon : online only, not tracked (and amazon limited versions are common for most of the games)
aeon : afaik it's a supermarket chain, never seen there selling games, anyway I think it's not big
tsutaya : ok (and tracked), but as amazon it's something usual
bic camera/sofmap/kojima : ok (and tracked)
yodobashi : see above
lawson / lawson online : not tracked (but as other conbini chains they sell digital cards)
in the end I don't see a big difference as other releases, considering stores like Gamers which sometimes makes special editions is missing
I just think the only difference from Minecraft will be the customer target, due to the high price probably kids will ignore DQB while teenagers might move from Minecraft to DQB due to the popularity of the brand and having more money into their wallets