Quota Policy for the Google Analytics API
You will need to create more profiles for each account and hit each of them. 2 profiles increase your quota to 20,000, etc. When adding profiles. Write a cron job to switch to different profiles as you approach the quota or after a certain number of runs.
Alternatively, you can ask Google to increase the quota:
If you think your application needs an additional daily quota, you can request an additional quota using the "Request More" link in the API console. Please provide a brief explanation of why you need this additional quota. For more information about managing quotas and how to configure the application to use quotas, see the "Monitoring, Filtering, and Using Capping" section.
If you so often need access to analytics data, you can consider using a service other than Google Analytics, or use Google Analytics Premium transferring $ 150,000 per year to your customers.
Basic Google Analytics is free, and Google is trying to get people to abuse it and manage heavy users in its premium service. What you ask for is more than GA is willing to offer for free.
UPDATE (Mar 06, 2013):
Requests per day may be increased, but profile requests may not match the Google quota increase request form (thanks @fuzzybee for clarifying):
This form is designed to request an increase in the number of requests for each project per day (by default, 50,000 requests / day).
The following quotas cannot be increased: daily limit for one profile (10,000 requests / day), 10 QPS per IP and 10 simultaneous requests for a profile.
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