1st: it's Mobil1, there's no E in Mobil.
2nd:it's worth it if your car is worth it to you. There is no doubt in anybody's mind that this oil is superior. In fact tests have proven it time and time again.
3rd: I have Honda mechanic for a friend (lucky me) and he has switched customers to Quaker State, Mobil, anything other than Castrol because Honda's tend to burn Castrol oil, I don't know why. But he has no complaints after.
4th: You can get a 6 quart case at Sam's Club for $21.00