That is quite normal in hi-end audio. The actual depreciation depends on when on the product lifecycle you buy the product. If just after the introduction it would probably not depreciate more than 30%. If at the end of its lifecycle, after the replacement is introduced - 50% is possible.
You may want to wait a bit (1-2 years) and get them used. This way someone else will take the hit. The S5 mk 2 are already 1 year old design and first examples should start showing on a S/H market in not too distant future.
You may want to wait a bit (1-2 years) and get them used. This way someone else will take the hit. The S5 mk 2 are already 1 year old design and first examples should start showing on a S/H market in not too distant future.