Agreed.
I've seen them live 6 times, and it's a mark of how good they are that, each time I've seen them, there's always been someone disappointed at a tune they've left out - they have such a huge back catalogue.
In fact, it's a mark of how good they are that The Masterplan album (Acquiesce, Masterplan, Talk Tonight, Rocking Chair, Half The World Away etc.) is a collection of B-sides. Every time I think about that, it blows my mind.
Any other band would have that album as their high watermark. For Oasis, it was their cast-offs.