Aye. It is nice to pop off the lid and give 'er the old eyeball.

Still, the float method comes pretty close, and, God willing, you planned for enough gas + a margin of error prior to your trip anyway.

There are absolutely advantages to white gasoline though:
1. Inexpensive. A canister of gas costs generally around $5.00 for 100g. The equivalent amount of white gasoline? Around $0.30.
2. Environmental. There is no canister to dispose of with white gasoline; one simply refills. And yes you can recycle a gas canister, but the canister must still be transported, melted, re-formed, and re-filled, all of which have their environmental costs.
3. Cold weather. White gasoline will burn well in as low a temperature as any stove can operate.
4. Survival. Pop open that white gas bottle, pour a little on a rain soaked pile of wood, and presto! you've got fire.
5. The semi-imponderable. You get to use really cool old stoves like a Svea 123 if you use white gasoline.

HJ