I'm right w/ you...modulars seem the easiest big ticket set to sell...yet I keep thinking I may just end up buying them back.
After selling used sets of Palace Cinema (buy-in $75, sell $200), Detective office (buy-in $75, sell $200), Parisian Restaurant (buy-in $75, Sell $150), Old Fishing store (not technically modular) Buy $75- sell $200)...I got 3 sealed sets today: Detective Office, Palace Cinema, Grand Emporium ($500 total)...I could probably flip these for 50-75% profit, but but