For a filco, shipped internationally, that is a good price.
Look at it this way: assuming you don't abuse it or pour liquid in it, this is a keyboard that will last you for years.
Assuming they over-estimate switch lifetime by 100%, it still takes quite some time to push a key 25 million times. To put it in perspective, if you pushed the key once per second, every second, it would still take over 9 months (for reference, there are approximately \pi * 10^7 seconds in a year).
Now, the average person doesn't hit their keyboard that frequently, especially for that long. So you're still looking at something that should last for 4-5 years, if not more than a decade.
And you can swap key caps, if you don't like them or want a change, they are easy to clean, etc.
So no, not steep at all, if you put it in perspective.