It looks like the only way we will be seeing a box set is if we become relevant to the actual retailers as opposed to their original demographic of little girls. That's going to be a tough one to break into, but knowing this fandom, I think we can pull it off!
I'll paste all of his direct responses after the break. (Thanks to wbwolf for digging these out)
"Guys, I understand the "Brony" movement, but one thing has to remain
clear. This show was not intended for the older audience as much as
it was intended for children. Retailers don't take into account the
size of the audience bigger than its target. The target for this
series, like it or not, is children. And young children's DVDs do not
sell well when in large disc-count sets. Parents don't want to shell
out $30-$40 for four discs, when they can spend less on a single disc.
So the retailers make it clear that they want single disc sets.
We can create both, if the retailers agree to take both. But we
cannot spend the necessary money to create complete season sets, if
they're only going to sell online or at Shout! Factory Select, because
retailers rejected them."
When asked why shows like Spongebob Squarepants and Clone Wars got
full season sets:
"Spongebob was turned into complete season sets, based on the sales of
the individual discs, which were usually themed for something like
Halloween or the "10 Best Tales." It should also be noted that the
seasonal sets began coming out at the paramount of DVD sales, when
people were shelling out for everything. A lot different than now.
Nothing that carries the brand "Star Wars" is made entirely for the
kids. In fact, while Lucas can claim it's for the kids all he wants,
he's really marketing to the Star Wars collectors that do insist on
spending their disposable income on things like complete season sets.
You'll also find that's why much of that series is geared toward a
more sophisticated level of writing and storytelling.
My Little Pony is a different case, altogether. While developed for
television by the wife of the borderline kids/adults series The
Powerpuff Girls, this is still a show that is based on a young kids
toy line and is aimed at young children who are learning the "magic of
friendship." That adults have become big fans of the show is an added
bonus. But the show is a children's show and children's shows sell A
LOT better on single-disc compilations that parents can simply throw
into the players and press 'play.'"