That' an acceptable loss to add an agility to each roll sent at me for a round. Especially when rolling Heavy laser cannon dice. The added suvivability means a lot more to a ship that expensive. After all, 3 Defense dice and 10 Hull. That could take a while.(Especially with Recon Specialist or Lando.)
This would put your ship at 51 points. At that price and having to fly well and being fortunate with asteroid placing and hoping your opponent doesn't fly better... sounds like a fair deal to me.