One of the options you're presented with when nominating a question for closure on the basis of being off-topic is as follows:
Questions on price-shopping for specific goods or services are off-topic as prices and availability change frequently in many locations. See: What is a shopping question?
The "What is a shopping question?" link links to https://stackoverflow.blog/2010/11/qa-is-hard-lets-go-shopping/ which is basically arguing that so-called shopping questions should be off topic because they're primarily opinion basis (which is already a reason for closure).
Anyway, I'm willing to accept that asking around for the "best price" is off topic but asking about the availability? There are lots of questions on TSE that ask about where to find things that aren't closed. eg.
- Where can I get Rabbit card for BTS Skytrain in Bangkok?
- Where can I find DB regional ticket maps (Streckenkarte)?
- Where can I find unspoilt parts of Iceland: free from sheep and with natural vegetation?
- Bicycle parking at Narita airport
- Where can I find unspoilt parts of Iceland: free from sheep and with natural vegetation?
etc.
The question that is specifically prompting my own is Where can I get unscented deodorant spray in South Korea?