I really don't think my lack of hard drive is the problem...but I bought the disc version and it's a stuttering mess, especially during quicktime action sequences. making it close to unplayable. Went to the official forums and others were complaining of this also. I'll never buy a telltale game again. GOTY award was an absolute joke. You've been warned.
I thought people were saying you can't install the disc to HDD? Therefore the answer would be that people should have a HDD *and* buy the digital version, i.e. the warning to avoid the disc version is still valid?
Anyway, it seems like something they could patch, though I understand the danger in spending the money while assuming that they will.