It was big issue when buying sanitary equipment (not sure if thats the word: faucets, toilet etc, shower). It was mostly because of Roca selling through 3rd party shops with physical locations. Every location had like 5% of whole catalogue so a lot of calling to find even a few things.
After that, I did a lot of buying without touching things. Also bought a lot of IKEA because seriously I got fedup with the whole experience of buying furniture