I just did a big chart to compare prices on tickets from WDW,
Undercover Tourist, Official Ticket Center, KGS Tickets, Maple Leaf Tickets, Orlando Fun Tix, Boardwalk Tickets, Park Savers, Tripster, AAA and Touring Plans.
AAA cost the most! They were not a bargain. I needed a 5 day hopper for my 10 year old (adult ticket) AND I needed to supplement what is left of my "no expiration" tickets with a 2 day hopper. Using Touring Plans, it scans all the above mentioned vendors (and maybe more?) and suggests the cheapest prices. For DD, it suggested Tripster and had a link that was about $5 cheaper than looking on Tripster itself. For my tickets, I purchased from Official Ticket Center. I have both tickets linked to
MDE and have been scheduling my FP+.
I will say that working with Tripster wasn't easy. I made the purchase easy enough, but then they need to protect me against fraud. I had to send a snapshot of my bank account that showed that charge (blocking out everything else) PLUS a copy of my driver's license (blocking out my DL #) before they would send me the tickets. Geez.... but I guess that since I don't think like a criminal, I don't understand how they do it, thus making these extra steps a pain the ****.
I think all the vendors above sell tickets for other parks & attractions besides WDW. Good luck!