On Sukkas we celebrate that Hashem Loves us.

Why do we commerate the Anenei HaKavod on Sukkas, and not the other miracles that Hashem gave to Bnei Yisrael in the dessert.  The answer is that we needed food (man) and water (Miriam's well) to survive, but the Anenei Hakovod were there to make us comfortable.  Therefore, we celebrate Hashem's love, that he gave us not just what we need, but he even gives us extras to make us comfortable.

heard from Reb Yakov Pascal