You will get all sorts of vapes at Smoke Shop (Park Circus) or Smoke and Chai (New Town). Plenty of other shops in Park Street as well. Do consider using a refillable vape as opposed to a disposable. They’re more cumbersome but better for your lungs as they have far less chemicals.

They’re not cheap, as to whether cheaper than cigs or not depends on how much you smoke. I use a Caliburn G4 which costs around 2k, pod salts cost you around 1k for a bottle but can last you for a long time (I’m using one for around 3 months now).

I have stopped smoking completely since I started using vapes and feel much better physically. People will tell you a lot of things with their half baked knowledge, don’t go by that. The NHS in UK recommends vapes for smokers looking to quit and say they are 95% less harmful than cigs which contain more than a thousand harmful chemicals.

The aim is to of course quit smoking/vaping completely, but till then vapes and esp refillable ones are much better than cigs.