Coding Conundrums 2.2: Scrabble Scores

using System;
using System.Collections.Generic;

public class ScrabbleScorer
{
    public static void Main(string[] args)
    {
        if(args.Length != 1)
        {
            Console.WriteLine("Use it like this:");
            Console.WriteLine("    ScrabbleScorer.exe <word>");
            Console.WriteLine("\n<word>: The word to calculate the score for.");
            return;
        }

        Console.WriteLine("'{0}' scores {1} points.", args[0], CalculateWordValue(args[0]));
    }

    public static Dictionary<char, int> wordValues = new Dictionary<char, int>()
    {
        { 'a', 1 }, { 'b', 3 }, { 'c', 3 }, { 'd', 2 }, { 'e', 1 }, { 'f', 4 }, { 'g', 2 }, { 'h', 4 }, { 'i', 1 },
        { 'j', 8 }, { 'k', 5 }, { 'l', 1 }, { 'm', 3 }, { 'n', 1 }, { 'o', 1 }, { 'p', 3 }, { 'q', 10 },{ 'r', 1 },
        { 's', 1 }, { 't', 1 }, { 'u', 1 }, { 'v', 4 }, { 'w', 4 }, { 'x', 8 }, { 'y', 4 }, { 'z', 10 }
    };

    public static int CalculateWordValue(string word)
    {
        word = word.ToLower();
        int totalScore = 0;

        foreach(char ch in word)
        {
            int chScore = 0;
            if(wordValues.TryGetValue(ch, out chScore))
            {
                totalScore += chScore;
            }
        }

        return totalScore;
    }
}