[sboak]

Before looking at arbitrary visualization patterns, have a look at some useful precedents. Truecar, for example, (https://www.truecar.com/prices-new/honda/fit-pricing/) visualizes similar data in a clean and readable way. Google Flights might be another (https://www.google.com/flights/#search;f=SFO;t=JFK;d=2015-03...).

There are some visualization patterns that might be useful to you for this exercise, like interactive small multiples (http://projects.flowingdata.com/tut/linked_small_multiples_d...) to compare suppliers' prices over time. Think a bit about the trends in the data you tease out (as you say, thinks like prices over time and comparing alternatives) and go in search of examples that try to achieve similar goals.