When you're browsing in an environment that is all about words, singing generally, and especially operatic singing, can be very off-putting – even to classical music lovers.
I personally prefer shops and restaurants with no music at all. And I'll avoid going into any shop that has music playing above the level of a musical "whisper", regardless of the style.
I was recently in a record shop where some very grand-sounding music from Mussorgsky's Pictures at an Exhibition was being played at high volume. I basically couldn't concentrate and just wanted to get out of there – a shame since they were having a closing down sale and there was lots more I probably would have bought if I'd been able to concentrate sufficiently to decide to buy it!