the experience i make is that t-shirts where you have the colors digitally (inkjet?) printed into a layer of white paint often wash out and/or the paint starts to crumble, while screen printed t-shirts really last ages. but im also far less careful with my t-shirts.
i like to buy from threadless, they recently introduced a new printing process, but most of their stuff is still high-resolution screen printed, often with 4 colors or more. https://www.threadless.com/catalog/s...tegory,Animals