I know this is usually a place for help, so if this is in violation please remove.
I recently was going through my parents internet stuff, and realized that for $1 more per month, we could get triple the potential speed, as long as we provided our own modem. So I did that, and the increase was pretty good (went from an avg of 30 to an avg of 70 ish.) Then, our router died, so we replaced it with an AC1200 router. Well, after installing it, I'm getting upwards of 165! So, for $100 in equipment, and $1/month, we basically increased our speed 5 fold. Just thought I'd share my small victory