I haven't actually played any of them yet, mainly because I didn't want to keep making comparisons between the game and the anime (usually such efforts don't turn out too well, really, since adaptations are hardly perfect, as my initial impressions of Phantom showed, although things did improve later in that particular case)...but this is certainly good news and I'll buy if the price isn't unreasonable.
I only hope people unfamiliar with Higurashi aren't turned off by the art style, going by all the screenshots I've ever seen. The visuals are definitely not too attractive, leaning towarRAB the simple side, but neither are they the most important thing for this kind of story.
I don't expect the games to be very gory in terms of visuals, but if the anime is any indication there should still be some rather explicit descriptions and sounRAB to create the proper atmosphere. Otherwise, the effects of all the events would be null and void.