Europa Stamps on Postcards.

I have received a sugestion from someone outsite Europe. That person was interested in doing the same thing with other commemorative stamps.

Do you think we should extend this idea? With some options to chose what to receive?

Options like:
Special programmes(Europa, WWF, ...)
Themes(Nature, Sports, Christmas, ...)
Countries(Your own country, Japan, Australia, ...)(I'm not sure about countries)

Or you could only chose one priority (a programme, a theme or a country)

Should we extend or should we keep this club to only europa?

That sounds like an option

If you only collect Europa cept you will have an option to receive only Europa.

Someone else could chose to only receive Sport related stamps.

When you add stamps to the catalog you will specify some details about the stamp.

When you send a postcard, you select the stamp that you use and the system will select a member that wants that stamp.

I have my doubts...
What if you only collect Europa cept? You send europa cept and you receive WWF?
Or can you choose what you want to send and/or receive?