For me, #1 is the extra bandwidth cost (I have a crappy internet connection), #2 is malware, and #3 is tracking. My crappy internet connection is what original

For me, #1 is the extra bandwidth cost (I have a crappy internet connection), #2 is malware, and #3 is tracking. My crappy internet connection is what originally pushed me to block ads. Everything's a lot more speedy when you're not loading all those extra scripts, images, and videos.