I agree. I'd also like to add that I think that generalizations of the median for higher dimensions should get explicit coverage, as well as a few related (and often neglected) concepts. Since the Wikipedia articles on this constitute a hot mess of not linking to each other in a sane way, I'll provide a list of articles on this topic here:

https://en.wikipedia.org/wiki/Fr%C3%A9chet_mean

https://en.wikipedia.org/wiki/Mode_(statistics)#Use

https://en.wikipedia.org/wiki/Central_tendency#Measures

https://en.wikipedia.org/wiki/Nonparametric_skew#Relationshi...

https://en.wikipedia.org/wiki/Geometric_median

https://en.wikipedia.org/wiki/Weber_problem#Definition_and_h...

https://en.wikipedia.org/wiki/Centerpoint_(geometry)

https://en.wikipedia.org/wiki/Trimean

https://en.wikipedia.org/wiki/K-medians_clustering

https://en.wikipedia.org/wiki/Medoid

https://en.wikipedia.org/wiki/Generalized_mean

https://en.wikipedia.org/wiki/Quasi-arithmetic_mean

https://en.wikipedia.org/wiki/Lehmer_mean#Special_cases

https://en.wikipedia.org/wiki/Logarithmic_mean#Generalizatio...

https://en.wikipedia.org/wiki/Stolarsky_mean#Special_cases

https://en.wikipedia.org/wiki/Facility_location

See Also:

https://en.wikipedia.org/wiki/Problem_of_points

https://en.wikipedia.org/wiki/Chebyshev%27s_inequality

https://en.wikipedia.org/wiki/L-estimator

https://en.wikipedia.org/wiki/M-estimator