I've had mine a year now and just bought my 2nd gun with it.
That said I got really bored and started going through my old receipts, and I've saved way more than $30 with out counting the guns at all.
That's the benefit I see most, the Dealer Discounts at MidwayUSA, and Brownells.
I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain.