Scott Values Vs Inventory Software

I use a very popular stamp inventory software. I am curious on opinions as to why there is such a large discrepancy/variation between what Scott publishes for values and the software places for values. EX: Russia SC#1356 is $10.00 in 2014 Scott but is $6.12 in the software. Intentionally not mentioning software name as I am extremely pleased with the program. Is this an attempt to get closer to a "real value"? When it comes to insured value should I use the deflated Scott value or add 30 - 40% to my software value?
Thanks all for your opinions!

Looks more like a retail price on your program.
And why in the world would you not tell us the name of the program if you are pleased with it?

Peter

Because the forum blocks the name for some of them (for previous rules violation).
Don

So if the program is retail then what is the higher value in Scott considered. List maybe? I guess I can help ID the program by saying it is from Canada? It is in my opinion the best! Should I be using retail for insurance purposes?
I did get edited once before for publishing a name so I now avoid all reference to names excepting for instance Scott.

Wheelman, I am not sure about your question, but personally I would use the list price for it. The price you would have to pay if you had to replace it.
Example: I volunteer at a school library and one of my tasks is to catalog the newly acquired titles. Every book gets listed with a replacement value, even though some books are donated.

Peter