Wasn't the Gobi's crit multiplier reduced from 5x to 2x?
The Gobi still rocks for a number of reasons:
1. Damage: Regular Hit is 45, Crit Hit is 125 and a Crit Hit with Better Crits is 165. That beats a crit hit from the Brush Gun. And a regular hit from the AMR/YCS Gauss Rifle
2. Fires Fast
3. Scoped
4. Very Low Spread
5. Best Gun for VATS - low AP 24. No other gun can pump out as much damage for so low AP - if you factor in crits
Basically you can do 8 times the damage on a successful Critical Hit/Sneak Attack Critical/Head Shot but only 4 times the damage with a Regular Hit/Sneak Attack Critical/Head Shot.
Ehh, I thought sneak attacks always crit? Constant 8 times damage for a head shot. Which is why Gunny says you don't need luck.