FThe value for money proposition is very individual. Most of my friends are what I would call casual consumers of music - music is mostly a background to their other activities that can be around the house or while travelling. They rarely (if ever) sit down to actually listen to the music. Typically, they wouldn’t even know or care about the different levels of music quality (and wouldn’t have the equipment anyway where these differences would be apparent). They are happy to listen to their favourites mixed in with some of the latest music. Quite frankly, Roon for them would be a waste of money.
However, for the serious audiophile who spends time actually listening to the music and has paid thousands of dollars for decent audio equipment, the cost of a lifetime subscription is around that of a very modest amplifier or a half decent (but not exceptional) wireless speaker. I have a combination of Bluesound speakers (for more casual listening) and a very serious amplifier and speakers for more serious listening sessions. I would rate my lifetime Roon subscription as one of my best ever audio purchasers.