Personally, I don't blame Best Buy for dumping some of these titles. I mean, when I went to my local Best Buy on Sunday, there was an ENTIRE SHELF dedicated to just Lucky Star. Seriously, how many people in this area even want that series (no one around here has heard of it, and I pretty much know every anime-watcher within a ten mile radius), let alone getting every single volume/set.
And the Gurren Lagann sets...jeez. I had to actually look at the back to see what language set I was buying. Seriously, the subbed set and the dubbed set look ALMOST IDENTICAL, to the point of where I don't even think a casual buyer would be able to know the difference. And all my local store had in terms of singles were subbed, the only dubbed version being the two-disk sets that were put BEHIND the similar-looking subbed sets (showing that not even the people putting these on the shelves know the difference).
Besides, why is Best Buy even stocking sub-only sets of shows? The only sub-only sets that should be there is GoLion, because that has the excuse of a crappy dub.
Personally, I see this as a wake-up call to companies like Bandai. Stores don't want niche series like Lucky Star or specialty sets like the subbed Gurren Lagann sets, they want series that can at least appeal to enough people to make money and sets that won't confuse buyers to the point of mass-returns. On the internet, you can sell all the niche/specialty sets you want, but putting them in-stores just makes you lose money.