About TIG welding and inverter conversion to TIG

[Christophe Mineau]

Hi friends,
I have always been curious about TIG welding, something I discovered watching at various Youtube makers videos.

Some years ago, I used to do arc Welding, and then I have moved to MIG , gas less, and I am wondering if it could be interesting to invest in TIG.
I find the TIG weld joints to be apparently much more neat than what I can manage with my equipment.

Any thoughts about that ?

I recently saw that there are kits , quite affordable, that could permit to convert my old inverter to TIG, but I'm asking myself a couple of questions :

- is my old tech inverter really suitable for that, it's the kind that you adjust the current with a big spider like knob you have to turn painfully many times.
like this one :
http://www.mig-welding.co.uk/buying-...oled-large.jpg

- are the Argon gas bottles really affordable. For the occasional use, I think I would first go with disposable bottles (~25 €), but how long will last the 60L ?
If I compare with my brazing equipment (butane/propane + oxygen), the butane/propane bottle lasts forever and is quite cheap where my 60L oxygen bottle costs me an arm and lasts no more than 20 mn ...
Is it the same for Argon and TIG welding ?

I would be happy to hear from your experience,
thanks !

Christophe