Should I read the Updike bio?

Should I read Begley's Updike biography? I don't think I should, though I imagine at some point it will end up in my hands and a morbid or sordid curiosity will get the better of me - but still, is there any author (pace Proust) who did more to bare his soul - his interior life - as well as the abundant details of his "exterior" life - than Updike? Through so many great stories, reviews, essays, and a series of novels - it's all there. If we read a biography to learn something about the life of the author, what more of interest, other than occasional prurient gossip or name drops, is there to learn about Updike? His childhood in Pennsylvania, early adulthood on the North Shore, wrestling with success and with age - he has written about this, with the thinnest veil of disguise at times, so in effect has written his own biography better than any biographer could - although it's a portrait of Updike like a Picasso is a portrait of a woman descending the stairs - all odd planes and angles, that we piece together, by reading book upon book, each with its own "slant" so to speak. Oddly, his one self-identified memoir, Self-Consciousness, is less revealing that many other books; some of the books are not ostensibly "about" him at all, except in that they are his artistic expressions - but the greatest - the Olinger and Maples stories, the Rabbit novels, the great final stories in My Father's Tears, even the poems in Mid-Point, though few or none are written in first person as narrated by a "John Updike," it's clear that they are his variants on his life. I had the pleasure of meeting him once - we were seated next to each other at a post-reading dinner - and he expressed to me that he preferred reading his poems (which he'd just done) to his fiction, said he "wasn't sure why." I am pretty sure he knew exactly why, but in any case I said something like: that's maybe because stories are something that's within you that you have to get out by expressing through art and once you do so you're done with them, whereas poems are your attempt to seize a passing moment or image or observation and preserve it and hold onto it forever. To which he said: yes, exactly! And I was really proud of that. His art is there for all of us. That's probably what I'll return to, or turn to,  to learn more about Updike.