Valets are insured as is the property owner. Valet lots are secure from general public meaning you likely won't have a beat up suburban park next to you, both doors flung open by kids into the side of your car then kids fingers, purses, diaper bags, baby seats, jacket zippers, etc. drug down the side of your car while they walk by, potentially twice.
Likewise you will not have an a-hole drive to the very back of a parking lot to park 6 inches from your drivers door. Write obscenities on your windows, hood and trunk lids with their fingers, sharpies, lip stick, etc. leave beer bottles on your hood, etc. to prove points I have yet to understand (all above from personal experiences).
In general people are self righteous, jealous, discourteous f.cks with an obscene since of self entitlement over and for other people's property and assets. Cars requiring a bit more access for the doors to open like the 12c, FGT, SLS, etc. force owners, if they wish to avoid retaliation from the general public, to park in the very back away from everyone simply so you can get in and out of your car. However extending common courtesy to the general self entitled public of not taking up 2 parking spots in the preferred parking areas and walking 4 or more rows thru empty spots often is never enough penance for having a super car and inevitably some f.ck will park 6 inches from your driver door out of spite.....
No, I'll take my chances with insured Valets and property owners. They never park a 12c in the back, it's right up front, always. The rock star treatment is kind of fun too, after all you tipped well for it.