I feel like a lot people are happy streaming music to a Bluetooth soundbar that’s cheaper and multi-purpose. I know I am.
My music setup is already great, a HomePod wouldn’t add anything to my experience. In 2018, a lot of people already have their music setup to their needs. It will be successful because it’s Apple and Apple users pour money into new Apple products whether they need them or not.
You're not the target audience. Apple is targeting the Homepod on people who appreciate a higher quality of music and music experience than just is what comes out of your typical bluetooth speaker. They designed an enhance Siri just for music exploration and playback, but cool that's not important to you. The Homepod will protect your privacy, but you are probably OK, as are a lot of people, with Google and Amazon loading up everything the speaker hears to the cloud because "you have nothing to hide" from law enforcement, hackers, intel agencies, etc. , who will have access to your data. The Homepod will be a smart speaker with a very powerful processor to handle updates for years to come, you have already said you are content with what you currently have.