I am no opera fan. I first saw this years ago, simply because I was dating someone at the time who enjoyed opera, so we went to a local cinema which was showing it, and I instantly fell in love with it. As others have pointed out, it has it's flaws, but so what? To me it is absolutely gorgeous, and it's plus points more than make up for it's flaws.
When I had the opportunity to do so, I bought a VHS tape of it (which I recall was a lot more expensive than your run of the mill VHS tape), and I have it now on DVD (which was a good deal cheaper).
I still enjoy watching it now and again.
