You're right gillybob, £79 per year isn't expensive for Amazon Music Unlimited, but as I pay £79 per year for Prime, and another £79 for Kindle Unlimited, it sometimes feels as though I'm giving Amazon a lot of cash every year!
However, I use Amazon for a lot of shopping, and 'free' next day delivery is very useful, plus if I need to use Amazon Locker for deliveries, it's a very short walk to collect stuff.
I place orders with Amazon, pay using my John Lewis credit card, pay the bill in full before incurring any interest, and periodically get John Lewis vouchers as a reward for using said credit card! It's very unlike me to be so organised!
I read a lot using my Kindle too, (a first generation, bought in 2009 I think) so having Kindle Unlimited saves me an enormous amount on books too!
Actually, I get very good value out of Amazon, but don't tell them, they might put their fees up