I pay cash and I do not, nor will I tell them what I spend my cash on.
Gun shows and folding money for the win.
Paying cash is just the start of not being 1984ed.
Straw purchase using old old straw purchasers with no connection to you.
In a couple of years that granddads gun collection will be untraceable anyway as it should be.
The government should have more important things to spend my tax money on.
I pay cash also. My local dealer gives me a 6% discount for cash and there is no transaction associated with the purchase other than the typical ATF form.