I agree with rovineye that this is a good deal. I just ordered one for $85. with tax and free shipping.
If your having troble finding it on Amazon search on : Classic Accessories OverDrive PolyPRO 3 Deluxe Teardrop Trailer Cover, Fits up to 8′ Trailers – Max Weather Protection with 3-Ply Poly Fabric Roof RV Cover (80-296-143101-RT)