Perhaps economics 101 ...
a little research on your part would help you differentiate ...
Homework assignment:
a) Compare links of Seattle, Vancouver and Victoria independents with emphasis on rate structure;
b) Compare links of Sea, Van & Vic agencies with focus on rate structure
c) Why to both inde and agency ladies like to tour PNW, BC, AB, etc ... I'm an optimist and figure they want to "spread" the joy! lol