I think digitec doesn't buy them directly, which means different purchasing conditions, shipping, warehousing etc etc. In terms of price, they are more in the midfield: https://www.toppreise.ch/preisvergleich/Sonstiges/APPLE-Pencil-Ersatzspitzen-Weiss-4er-Pack-MLUN2ZM-A-p451450

Digitec also wants to earn something ^_^ and maybe Apple sets the prices so that their business in Switzerland is not disturbed.

From a forum 12.11.18: Just purchased a pack of 4 and they work perfectly for my 2nd gen pencil. So without a counter report until tonight (then I'll check it myself) the "old" tips work.

Not the ones from Apple. Besides, these are the tips for the Pencil 1 and it's already a bit old.

These are only replacement tips without different line widths.

On the other hand, you have some advantages here that you don't have when you order / buy directly from Apple.

Yes, I am using it right now with the Apple Pencil 2

apparently not :-)