He wasn't going to bat .350+ all year was he?
He looks an incredibly inconsistent player judging by his career stats, I'd say .280-.300, about 20 HR's, 90-100 RBI's is his total upside. If there's better free agents out there then go for it.
Hidalgo is not all that
good. He has been a starter since 1999 and has averaged more like .270, 24 HR, 79 RBI. Good, but not great. Those career stats are inflated by a great 2000 season (.314, 44 HR, 122 RBI). If you took that year away, he is simply an average outfielder.
He had a really good year last year (.309, 28 HR 88 RBI) but in 2002 was less than stellar (.235, 15, 48). He strikes out about twice as much as he walks.
He actually is very inconsistent and there probably are better players on the WW, especially in smaller league (10 teams or less).
I'd say in a H2H league, he will kill you some weeks and be your hero other weeks. In roto he is too inconsistent to keep.