I have full sized tanks with Victor regulators and torches, too. I only use that torch when I need a lot of heat, though. The Victor is heavy and unwieldy in the hand so 95% of the time I use a Meco Midget to gas weld steel or aluminum, braze, silver solder or harden something. For hardening small stuff, I mostly use a Mapp gas torch or two.
I think the choice depends on what you expect to do with it. If you plan to work on big stuff, do a lot of cutting, bend heavy work pieces or preheat large cast iron or aluminum parts then a full sized set up is a no brainer. However, for the vast majority of work in a small shop, I think smaller tanks and a Meco Midget (uses a lot less gas) is more practical. For myself, I haven't used my full sized Victor torch in over 20 years.
I think the choice depends on what you expect to do with it. If you plan to work on big stuff, do a lot of cutting, bend heavy work pieces or preheat large cast iron or aluminum parts then a full sized set up is a no brainer. However, for the vast majority of work in a small shop, I think smaller tanks and a Meco Midget (uses a lot less gas) is more practical. For myself, I haven't used my full sized Victor torch in over 20 years.