When I worked in retail I always recommended the homeplugs, but customers usually bought the repeaters because they were cheaper. 30 vs 90 euro's. Most of the time they came back, returned the repeater and bought the homeplug
"I told you it wouldn't work with the aluminium foil isolation in your floors..."
Aaagh, thinking about it makes me so frustrated again. They'd always ask you for advice, but then ignore it.
Customer: "can you help me with the laptops?"
Me: "sure, what do you need it for? just office work or also for some photo or video editing, maybe gaming even?"
Customer: "No, not for gaming but I will be using it for photo editing and I also want it to last me 5 years like my previous laptop did. Although that one has been very slow for the past few years"
Me: "I've the right laptop for you" *points laptop B* "It's costs a bit more, but you won't be needing another laptop for a while, especially if you buy it with our extended warranty plan."
Customer: "Oh, that's too expensive. I'll take laptop X for 400 euro's. It has 1000GB storage so that's really fast, right?"
Me: "I wouldn't take that one"
Customer: "Why, is it not good enough? Are you telling me it's not good? are you guys selling garbage here?"
Me: No it's a good laptop, but it won't do the things you want it to do"
*customer only hears what she wants*
Customer: "Why would I pay double if laptop X is a good laptop? I'll take laptop X"