Your question fits well with topics covered in 'By The Numbers'. Collecting with a goal in mind allows you plan your acquisitions regardless if you plan on spending alot or a little. Check out the free Excel spreadsheet available in that forum. It may offer some new ideas about prioritizing your purchases - particularly if you look to acquire soon-to-retire or older models.

Are there certain regions or models you prefer to collect - or are you a true wacko, ultimately going after them all?

Rgds,
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/im