I think I'd ask the Cable company if they update their modems for free and how often… reason I say that is the technology changes every couple of year.
Not really. DOCSIS 3 is the latest. It's been around for 7 years or so, and it took them quite a few years to go from 1.1 to 2.0 then to 3.0. 3.1 is coming but we're talking Gigabit speeds, not really residential use.
I'd also compare the Specs of their model Vs. those recommended (above).. they may be giving you a Model T and charging like it's a T-bird !!
Lots of Pros and Cons . . . .just don't get conned !!
If she was a serious gamer, it was a house with multiple users, or something along those lines I'd agree. I still use a SB5120 which is DOCSIS 2.0. It will do 30M down, more than I have. They are also about $15 on ebay and more than fast enough for my 15M download plan. I have a backup ready to go at that price. Newer isn't always better, all depending on the end user.