I live near BCF and pick up my orders. Got to know the owner and staff. The bulk of their business is vape related. About half is DIY slugs like us.I suspect that if nicotine stopped being available the demand for those flavors specifically made for vaping would go way down. Not sure if the demand from people with freezers full of nic would be enough to support vendors like Bull City and WL.
Finding suitable flavors from a general flavoring supplier would work for us but probably be a little harder. One shot flavors might not be available. We would have to figure out which ones didn't contain oil. Might have to figure out new ingredients with new names to make our favorite recipes. Go back to school on the percentages we use. Etc.