[yalooze]

https://www.musictaco.co.uk - Find the cheapest place to buy albums online (you can also track your favourite artists and it will email you when they have a new release)

To be fair, I built it primarily as a way to teach myself Rails, and in this regard it was a great success. But in the back of my mind I figured I might be able to make some affiliate revenue out of the traffic but it never took off.

It has failed so far because: it is a small niche (most people just use Spotify these days), I haven't marketed it very well and haven't found the niches where likeminded people hang out (building is definitely easier than marketing). I could definitely do more on the homepage to explain the features, particularly around tracking artists and being notified when they release new albums, but at the end of the day I just haven't been able to market it (nor did I spend a lot of time on this aspect of it). For a long time it only worked in the UK (an even smaller audience compared to the global market), although I did just roll out an update for it to work in the US, but have not done anything to advertise the fact.

Feedback welcome!

[asutekku]

I would imagine most people are going to buy the music where they usually buy it from. And with just three sites it compares I could just check these sites by myself. So for now it lacks a bit of content.

However, something I would like to see and i think could be more niche-oriented would be similar as this but for physical releases. Discogs does have some retailers, but they need to manually upkeep their inventory in there. If you could scrape physical releases and show where I can order album X for the cheapest (shipping included) or even see where it is available to buy, that would be a service I would love to use.

[yalooze]

I used to do just that (check them manually) and so built this to scratch my own itch :) It used to have Google Play as well but they sadly moved out of the digital music purchasing space.

Regarding Discogs - I don't have any interest in physical media unfortunately so will leave that problem for someone else to solve.

[polynomial]

My understanding is that Discogs has mainly eaten this market. And my experience is that the same items on eBay are consistently higher priced on average (sometimes much more.)

[fapjacks]

Just a heads up to OP... Discogs is definitely a mom-and-pop endeavor in more ways than one. If one were nimble enough, I am almost certain they could not keep up with a more featureful competitor that shaved off the (many) pain points of buying/selling in their marketplace. Inventory (and want-list) management being a great example.