All three of us have Macs, so the day before we planned the marathon, I stopped by the Apple Store at the mall near campus to see what we'd need and buy it. I was also on a budget, so we had two options: Use my laptop which is an older model Mac (over five years old by this point) or use my friend's newer model Mac. Whichever option was cheaper was the one we were going to go with.
When I got to the store, one of the employees asked me what I was looking for. I explained that I was looking for the necessary cables to hook a laptop up to the TV. She told me that she needed to check with another employee but she'd be right back to let me know. So, I stood and checked out a couple things (I stayed in the same basic area she'd approached me in) and waited for her to come. Ten minutes later and she still hadn't come back.
In the meantime, another employee approached me and asked what I was looking for. I told him that another employee was helping me, but that she hadn't come back after I'd asked her what I'd need. So, he asked me what I needed and I told him: What cables do I need to hook my laptop up to a TV to play movies or shows?
He asked what model I had and I told him that I had an older model Macbook (2007, to be specific), but also that we were planning to use a newer model one if that was cheaper and less complicated to set up.
He took me over to where all the cables were and told me that I'd need a fairly elaborate set-up in order to get it working with my laptop and that said set-up would cost me, at the cheapest, about $150. I told him I was on a budget and asked if it would be cheaper and less complicated if I was using a newer model Mac. He ignored that and insisted that this was the only set-up that would work. Then suggested that I should upgrade to a newer model instead of the one I have. I think he realized by that point that he'd pissed me off, because he quickly backed off and said that it was "something you should think about doing in the near future."
Realizing he wasn't going to be much help, I thanked him for his time and left the store, pretty pissed off about it. I went to a different Apple Store and the guy I asked there said that, with a newer model Macbook, all I would need (for both audio and visual) was an HDMI cable. I asked if he was sure and he said he was certain (he was right, it worked perfectly fine).
tl;dr: Apple Store employee doesn't listen to what I'm asking for and tries to convince me that I need a complicated and fairly pricey set-up to hook a Macbook up to a TV when I only needed one cable.