just looked and the F1's are listed at $265, or approx $95 more than the Koolance v2. Could be 1/3rd the cost of a dewar. Want to read the reviews before jumping, and ummm... if anyone wants to sell a used F1 let me know
Just talked to the local LN2 guys at AirGas and they quoted me a sweet price per liter if I rent a 160 litre dewar for a buck and a half a day... decisions decisions
