You won't get anything simpler, cheaper or easier to use than those cans, and with practise and artful diligence, they can result in a passable job. Only wish there had been something available anywhere near as good 35 years ago!

There is no such thing as a low cost airbrush setup - if you want a better result than those cans will offer you.

If you want a top result, then you need quality equipment, and something larger than an "airbrush" to achieve it. Cabinetmakers spray guns are ideal for our purpose, and you can buy some beauties from the likes of Iwata et al. But they ain't inexpensive and that's only the start.

For that good result you'll also need a compressor wih a tank, though the Chinese imports are quite inexpensive these days compared to yesteryear. With that you'll want a pressure gauge, water trap, fittings etc. Then protective breathng apparatus and an appropriate spray booth with ventilation if you care at all for your health, and that's before we get to the cost of materials, the nuisance of preparation and and loathsome task of...cleanup. And then there's the practise, skill and sheer bloody effort required to effect an result better than you can from a can!

Maybe the years have just dulled my enthusiasm, but these days I just stick with Monocote and cans if needed - and I have all the equipment including a top Badger airbrush and acessories for fine work and an Iwata precision spray gun capable of as perfect a job as possible. That said, I'd only be tempted to pull them out for a very, very, very special project. Not likely any time soon.