It is reasonable to consider a work in the context of its limitations. But from a consumer perspective, it is helpful to compare it to works which cost the same. The ~$20 they are charging for a Blu-ray of Alpha and Omega 3 might instead be spent on Despicable Me 2 or Frozen, which are arguably superior in quality. For $8, it might be a different matter.
(Of course, Alpha and Omega 3is available on iTunes for $9.99 SD or $14.99 HD, while Frozen is $14.99 and $19.99 respectively - but the latter can also be rented for 1/3 the sale price.)
It is reasonable to consider a work in the context of its limitations. But from a consumer perspective, it is helpful to compare it to works which cost the same. The ~$20 they are charging for a Blu-ray of Alpha and Omega 3 might instead be spent on Despicable Me 2 or Frozen, which are arguably superior in quality. For $8, it might be a different matter.
(Of course, Alpha and Omega 3 is available on iTunes for $9.99 SD or $14.99 HD, while Frozen is $14.99 and $19.99 respectively - but the latter can also be rented for 1/3 the sale price.)