No personal experience but I would think the line would be shorter. Here's info about Will Call off The Dis:
http://www.wdwinfo.com/wdwinfo/tickets.htm
SELF SERVE KIOSKS
These Ticket Vending Machines are automated self-serve Kiosks where 1 thru 10 day Magic Your Way gate priced tickets can be purchased. In addition, select
Will Call orders from internet and DRC transactions can be picked up from these kiosks.
The purchase of tickets requires a credit card. Will Call pick ups require the confirmation number. Tickets purchased at the kiosks can be modified according to the current rules for Magic Your Way tickets.
Locations:
* Transportation and Ticket Center - 10 Vending Machines
* Magic Kingdom - 3 Vending Machines at the Guest Relations Window
* Contemporary Resort - 1 Vending Machine on the 4th Floor Concourse
* Pop Century Resort - 1 Vending Machine in Classic Hall
If an error occurs during the transaction, a "Ticket Replacement Receipt" will be generated which can be taken to a Host/Hostess for assistance
At this time, Annual Passes, Florida Resident tickets, Convention tickets and Special Event tickets are not available via the kiosks
hth!