Musician’s Friend is my baseline for what a good musical instruments and gear store should be. They have a great selection of gear at a wide range of price points, they’re extremely knowledgeable about the equipment they carry (and some stuff they don’t), and they’ll help you find the right gear for your needs at the right price point (although they won’t be shy about tempting you with stuff that’s just a little out of your range!). They have been very helpful to me in the past, but extra props to them when spent HOURS advising me and helping me audition amps when I was ready for an upgrade. They also have a great selection of used gear. The result is that I’ve been extremely happy with my last purchase which is the able planet true fidelity NC350BC headphone.
These headphones hush ambient sounds by creating frequencies that obviate the noise at your ear. I tested it on the plane, and also with A/C unit running in the hotel room, the NC350BC headphones are noticeably more effective at noise cancellation than my past headphones. It’s almost eerie, as the background noise just seems to click off when the headphones are turned on.