Question about Multibrackets iMac 24" adapter suitable for all MB table holders

Wieso gibt es da so Preisunterschiede? Die hier kostet fast 500? https://www.digitec.ch/de/s1/product/multibrackets-monitorhalter-mit-gasfeder-fuer-imac-24-tisch-24-monitor-halterung-20587622?supplier=406802&utm_source=google&utm_medium=cpc&utm_campaign=PROD_CH_PMAX_GSE_Cluster_7&campaignid=20484011505&adgroupid=&adid=&dgCidg=Cj0KCQjw5cOwBhCiARIsAJ5njuZrTXB2f717RRvOnbhjIrZdVuYHQ74p5DXKd4nqHMeMp7lJQ8WymVoaAtNrEALw_wcB&gad_source=1&gclid=Cj0KCQjw5cOwBhCiARIsAJ5njuZrTXB2f717RRvOnbhjIrZdVuYHQ74p5DXKd4nqHMeMp7lJQ8WymVoaAtNrEALw_wcB&gclsrc=aw.ds