Hi,
I just checked out Honeyville's website and their prices are astronomical! $51.00 for 50 lb of wheat! It does not appear to be non-GMO, either.
I live in Oregon, and can buy 50 lb of non-GMO wheat from the local feed stores for about $12.00. I can buy organic, non-GMO, corn-free 3-grain scratch for $30.00 per 50 lb bag (and that sounds expensive to me).
Azure Standard's prices are much better than that, if they serve your area.
Though wheat has been very hybridized and artificially mutated and lots of people believe this has made it much less healthy, it is not a GMO crop.
Here is more info about what is and isn't GMO: http://www.nongmoproject.org/learn-more/what-is-gmo/