The ones we have at work now are TRUlink HDMI Selector Switch from CablesToGo.
http://search.cablestogo....selector%20switch&p=e4-Port Switch is $95, 6-Port Switch is $110. Never said they were cheap, but they work really well. Anything more than 2-Port and you're looking to pay a decent amount.
Good grief, $95 for a 4-way splitter? Makes me glad I bought mine at RadioShack before the one near me closed down. I got a 4-way Auvio splitter there for around $40. This one, in fact:
http://www.ebay.com/itm/l...670?chn=ps&dispItem=1I still use it daily, and it works reasonably well. Occasionally the video won't sync properly, or it will detect 480p instead of 720p or 1080p, but that's usually just a matter of switching to a different input and back again to force a refresh. I've been pleased with it overall.