regarding Respect is Earned:
the PPV section is good. if you haven't seen the PPV already, then it's worth buying just for that.
as for the extra matches:
Davey Richards vs. Erick Stevens is really good. *** 1/2
the tag team scramble is a total fuckfest but it's a good one. Steenerico rule the school. *** 1/4.
so yeah, that's basically all you're getting extra besides a Daize vs. Del Rey match (haven't watched it yet) and Albright vs. Toland which sucks.
overall (even without watchig the women's match): 7.5/10 for the DVD. most of that is based on the quality of the PPV portion tho, so it's not that "must buy"
you could always get Domination instead

. or an older ROH DVD from this year.
edit: looks like you can pick up either Death Before Dishonor V shows too