I guess it depends on the price as well.
I get a good 150/15 mbit connection here, but it's not that cheap costing 60 euros a month. I could upgrade that to double, 300/30 mbit but pay around 85 euros a month... or consider downgrading to 40/4 mbit, costing about 50 euros a month.
As i run my web development business from home over this line i kinda need the 150/15 mbit option to deploy websites at a reasonable speed, but as an ordinary consumer downgrading could be attractive to save cost at this point.
Then again these prices are a result of a monopoly on the cable network at this point, and could be slashed once mobile providers drop data limits on 4g connections.
For many people there is also the adsl alternative, but for me this is not really available due to bad wires. The fastest rate we could push through that old copper was 12 mbit or so.
Early on this was no problem, about 15 years ago i got a 512/128 kbps connection over adsl, and they kept on increasing the speed of that without increasing prices. This kept on workng well up to about 8 mbit down, 1 mbit up, after which problems presented due to the poor copper line. I was with this really nice ISP for that entire period of time. Once they hit 12 or 16 mbit down speed it started to fail, and despite them sending over people to do line measurements it was not possible to remain on adsl after that and i needed to switch to cable.
Good thing that they were honest about it all, and after measurements said they could not reliably deliver over 10 mbit on the existing wiring.