Compared to when I bought them, they are a bit cheaper.... However, it is not worth extending the warranty, Digitec refers to the manufacturer directly in case of problems, so a normal warranty from the manufacturer is sufficient.

Yep, the price fluctuations are a pain. However, I have written to support before when a product became cheaper after I bought it and got the difference back. Btw the sennheiser are awesome, the sound is better than the airpods pro 2. but the NC is much better with the airpods.