Single: .16-.24 ohm; 64-95 watts
Series: .35-.8 ohm; 76-174 watts
Regulated: .1-.3 ohm; 70-125 watts
I'm calculating these using realistic battery voltage.
To me, you're at a perfectly reasonable level. Many others have a similar approach these days, though in terms of capabilities, you are vaping heavy... ...as in, close to the maximum range of most setups. Does that mean it's too much? Absolutely not. As long as you're staying within the safe limits, vape where you're most satisfied and comfortable. But then, what do I know? My ADV is a 170w+ unregulated. XD
My personal philosophy (and this is just how I see fit to operate) is that you don't buy a mod with features or capabilities that you don't intend to use. If the max you ever want to vape at is 70w, then don't buy a 200w mod with a ton of features. Instead, put that money into a more streamlined mod of higher quality that gives you only a little more than the power you need. If you need more, get something that can do more and save the other one for when you don't need as much.
I own high-powered devices because a high-powered vape is what I'm after. That's what I most enjoy. What's the point of buying a high-powered mod if you don't intend to use the power? I don't think it's over-the-top to run a high-powered mod at... ...well, high power. That's what it's made for. What's stranger to me is running at low-power on high-power boxes... ...or under-powering coils/atties. Even crazier are people who run at higher power levels on devices that can't handle it... ...such as running .1's on tube mods.
It's only "too much" if you're surpassing the limits of your device.
Fully utilizing the functional capabilities of your mod is "just enough." If you're not even coming close to that, then your mod is "too much." I understand that people often buy TOTL mods just to know that it can do more, better battery life, aesthetics, and so on... ...and that's fine, but I think most would get a better experience using something more purpose-built for the way that they vape. It just seems wasteful to me - like buying a supercar just to drive to the store.
I guess it all depends on who you ask, though. If you're running at power levels well beyond what someone else would enjoy and be comfortable with, then it's a given that they're gonna say it's too much. But that's only because it would be for them. And conversely, their ideal vape may not be enough for you. *shrugs*