Maybe the high-end segment is too niche. But if there are hundreds of thousands of bike commuters in your urban area, you need quite a lot of service shops. Right now they seem to be over-saturated and give you a rdv mid-january if you ask. It would seem that things are going quite well for them!

I recently bought a new bike in one of those shops and it essentially amounted to the seller buying the bike online from his laptop in front of me.

Not sure what you mean about "cozy lifestile business", but is seems great, especially if it allows to make ends meet.