It's true that often a broken spoke on a certain age wheel can indicate that more are likely to go in the near future.
Also a lot of repairs that bike shops do don't really earn them any money. The reason that so many shops quote high costs to service and repair out of condition bikes. It can take time. It's quicker to make the mark up on new parts and earns more money for their time than spending hours working on a bike at a relativley low hourly rate. Average £25 per hour doesn't go far when you have shop overheads etc. Couple of hundred sale in 20 mins is more realistic to keep the shop running.
Edit: I don't mean this in a bad way and not having a go at bike shops. I'm just pointing out that they are often realistic with costs businesswise, otherwise they won't be in business for long.
It's true that often a broken spoke on a certain age wheel can indicate that more are likely to go in the near future.
Also a lot of repairs that bike shops do don't really earn them any money. The reason that so many shops quote high costs to service and repair out of condition bikes. It can take time. It's quicker to make the mark up on new parts and earns more money for their time than spending hours working on a bike at a relativley low hourly rate. Average £25 per hour doesn't go far when you have shop overheads etc. Couple of hundred sale in 20 mins is more realistic to keep the shop running.
Edit: I don't mean this in a bad way and not having a go at bike shops. I'm just pointing out that they are often realistic with costs businesswise, otherwise they won't be in business for long.