Greetings,
If you happen to decide to avoid the headache of running a crawler and collecting the data yourselves, perhaps you'd be interested in the raw data itself. We offer one-time snapshots of the entire store, weekly or monthly feeds, or a 30,000 app spreadsheet with all the metrics and fields you might want. I'll attach a sample of the spreadsheet so you might take a look.
Looking forward to hearing how we can help,
Jeremy
Oh and.. "I'm am a Programmer"