We yogis and yoginis need a sticky mat, comfortable clothes, but that is it.
I have a luxury black mat, thick and long. I use it for my home practice.
The one that is not so good is pink but it's not so heavy (and also not so long), I can carry it around. It was expensive. Very quickly the material showed traces of my practice. (This one I wouldn't buy anymore. No, I don't mention the brand. Next time I buy again German quality. Hahahahahaha)
I have still my first mat, it's a blue one. It is a very thin and light one and looks like new. As it is very thin I don't use it anymore, but nothing speaks against it to use it again.
Coffee shops sell yoga mats, too. My experience: it's not the best quality they offer.