Here's another thing to consider: service. When you're spending this sort of money, you should really expect the level of service you get from the shop to be commensurate.
If you're looking at a Fahrrad Manufaktur and you're UK-based, then you probably saw it at Bikefix in London. In addition to Raven AT, I have a Fahrrad T100 and my wife has a T200, which we bought at Bikefix. We love the bikes - they're well designed and super durable - but we found the service at the shop to be highly variable. The owner is very knowledgeable and often engaging, and you can sometimes find someone on the shop floor who is helpful and willing to chat.
But more often than not, you'd have to go searching for help (odd in a shop this small!), and the sales staff never really seemed that interested in helping or selling. The service dept was largely competent, but still lots of attitude .
The positives: Probably the only shop in central London that will do a same-day repair, and a really nice collection of bikes and recumbents. Also, Bikefix does lots of demos and contributes a lot to the cycling advocacy scene in London, and that's great.
One disclaimer: I haven't been to the shop for over a year (having moved to Boston a while back), so things might have changed.
But at the end of the day, the level of service I received from SJS was consistently helpful, never pressured, friendly, and professional - and that's definitely added to my satisfaction with the bike.
