for Sale
Asking prices are tightly clustered, suggesting a stable resale market — there is little room to negotiate based on comparables alone.
The 2026 Grand Design 388mbs is currently available from 2 dealers on Searchshop with 3 active listings. Prices range from $110,399 to $112,699. Median price is $112,199. The 2026 388mbs is the newest model year currently listed, so expect lower mileage but higher asking prices than older years.
Where to Find One
Inventory is concentrated across Indiana, Wisconsin, so buyers in those regions will find the most local options.
Buyer Tip
Confirm the original factory warranty is intact and transferable, request the original window sticker, and verify any recall work has been completed at a Grand Design dealer.
