"Kaufen": To order or obtain. This emphasised the mutual transaction of cash against a commodity in unambiguous terms (Okay, it can be used metaphorically also in the same vogue to English: "Das kauf' ich Dir nicht ab" = "I do not buy [=believe] that"). Hook up @ Bett is reworking https://meineupdates.de/ein-einkaufsfuhrer-fur-massivholzbetten-worauf-sie-achten-und-wo-sie-einkaufen-sollten/