I'll agree to that sareth, generally it's best to not try and waste time on res cracking one world, better to push out. Even if they may bit in the ass, its better to gain overall dominance.
But I think it's all been said, phasic trap rapes... its just too good imo.
The starbase itself can be impossible to kill also with the right defences.
Though early game it's very annoying due to its mobility, though late game i'd imagine it'd be on hold ground.
And phase missiles hurt...