Your reasoning makes sense. I find now that I'm near the 1 year anniversary of starting T, that I'm thinking of many factors.
I like the T; it's much improved my body profile. I'm 6'3 and before T weighed 245-250 and now weigh a more muscular 215. I like biking, and it seems that I can ride my bike forever, and slowing down on hills is a thing of the past. I can't say that I've felt any other benefits, but the physical improvement alone makes it worth it to me.
But, coming from a somewhat survivalist mentality, I'm a little uncomfortable with the fact that my well being is tied to an exterior source - to the belief and hope that T will always be available. What if, for whatever reason, T suddenly wasn't available, and I had atrophied testicles that were no longer able to bounce back? It's not too much of a stretch to consider - in the single year that I've taken T Enanthate, there's been a shortage of the product twice.
If I kept my balls alive through HCG supplementation, then I'd at least have something to fall back on should the sh-t hit the fan . . . hmmmm.