In Matter of Market Sq. Props. v. Town of Guilderland Zoning Bd. of Appeals (66 N.Y.2d 893, 895, 489 N.E.2d 741, 498 N.Y.S.2d 772 [1985]), the Court held that "expert opinion . . . may not be disregarded in favor of generalized community objections," but nevertheless affirmed the board's denial of a special use permit because there were other grounds in the record. The same principle applies to renewal of a special use permit. This is not to say that denials and nonrenewals may always be based on identical grounds. Where a facility is already in operation and its owner has made an investment, the board should take those facts into account. That said, the board's decision remains a discretionary one that will not be overturned if it has a proper basis.