Google Analytics' maximum date range seems to be last 30 days. There is 0 chance this is actually the maximum viewable age of data, given how crucial it is for webmasters to compare current data to older data...right? How can I view data from an arbitrary time ago?
Google Analytics does not have a 30 day limitation. You can choose a "custom" date range and choose whatever start and end you want over any time period.
I personally think that the limited selection of dates available in the drop down is severely lacking. I use a custom page of date options for Google analytics that I created to link to a wider variety of time periods.