I have never been to Comic Cubicle, I will be back in Va for a week soon, might have to take a trip up there if I have time (also depending on their hours).
So some shops for you to check out.
If you don't mind the smell of cats, Benders Books and Comics is decent on Mallory Street in Hampton. It is right before the Bridge Tunnel to Norfolk. They literally have 1-2 free roaming cats in store.
If you are looking for a cool shop run by some awesome folks, either the Hampton or Yorktown Jersey's Cards and comics, they are mostly modern. They have some back stock in Yorktown, but it is not a huge amount don't think you will find anything pre 1990 if at all. Gaming and cards are more their thing though (Hampton is almost all cards).
Pretty decent selection of older comics and some slabs, Atomic Comics on Mercury Blvd in Hampton. The owner is not really there anymore and his kids run it now. They are good people. They have 2 locations, make sure you are at the one in Hampton. The one in Newport News I am not sure what kind of stock they have.
On the Norfolk/Va Beach side. Atlantis might have some stuff, but last I was in there, they are mostly modern and gaming. They have a few locations so maybe the Portsmouth location might have more as it is a bigger location.
And in Va Beach, Trilogy Comics on Princess Anne.
When I go out to Va if you want me to look for anything specific and report back to you, I can if you'd like @letsgrumble.