yeah only issue i have with battlecruisers is their gas price. a whopping 300 per ship. You could have at least 3 bases going all vespene capped X3 svc’s and still run out of vespene cooking cruisers. Definitely worth every penny though.
i wouldn’t leave my cruisers to die, not 6 or 7 of them if i know i can have them fall back.