Anything I want ‘right now’, gear-wise,I’ll buy from my local vape shop. I’m lucky enough to have a decent enough one nearby. But, it does mean paying double, sometimes more, than what I can get it online for. For my DIY, it’s all done online, nowhere near me sells concentrates let alone decent nic. I have a few reliable vendors that can deliver with a couple of days, but they are expensive, everything is over here. I use that UK site and one from Poland for better value, but I do need plan well ahead. No good for emergency supplies.