Only guarantee on your list is the gun purchase going faster. Show your CHL & there is no call in for background check. The CHL # goes on the 4473, you pay, you go.
Some FFL's give discounts on transfers but is not manditory or even what I would know as any kind of "standard practice." I know of no Pawn Shop or any FFL that will sell only to CHL holders.
Stopped by LEO & showing CHL gives no special priviledges. Ask me about yesterday

A 5 minute visit w/ DPS was worth $244.00 for 16 MPH over. I have heard of some saying they thought the CHL saved them a ticket but it did not help me.
One benefit I find that you did not mention. When you do a personal buy or sell to an individual if they have a CHL, that gives you a character refference on them. I always ask. Have stated on a couple of occasions that a sale would only be to a CHL holder. Those two times I was selling a low $ gun & would not take the risk. Had many inquire on both but still have both guns.