I'm seeing a surprising number of entries for 4 blocks (and comments that people would happily go even further) for considering a location convenient to the hotel. Because current mid-2017 ownership (and therefore responses) is likely skewed to
a) men;
b) EV enthusiasts;
c) 35+ age
Incidentally, I fit all of the above three categories.
Let me throw in a few observations, and vague inferences that such (apparent) biases might introduce.
1) when staying at a hotel, maybe as likely as not, to be traveling with a spouse.
2) the 'b' bias might skew many to be happy to have _any_ chargers at any walkable distance;
3) many years of experience with hotels, sidewalks, cross-walks, etc, gives these older owners more confidence while on foot.
Now, consider these biases versus how we might be constituted in 2020 and beyond:
1) more equal distribution of sexes as owners (if we even own cars in that era);
2) more people who just want to go from point A to B, and still be as convenient as ICE;
3) generally double or triple the charger density
Anyway, I'm sensing, future, similar surveys will skew to lower numbers for what distance is thought as convenient.