I'm "pretty" sure that because they are in close proximity to gold now, dealers are having a hard time keeping them stocked, therefore the old adage "supply and demand". They are getting sold out as fast as they arrive and rarely stay in stock for too long. I also think most platinum is coming from Russia for the most part and with all the trouble we are having with them this may be a factor. But I always stand to be corrected.
I would concur. I haven't seen a 1oz eagle for sale in a long time. Halves are out there, but they're not abundant.
Local LCS gets the 1/10 ozt. Sometimes eagle sometimes Isle of Man type stuff. They run $30.00 over per coin. So about $150.00
There are some halves on apmex right now. They're also running free shipping. I almost bought one this morning, but was having CC troubles. Good thing I didn't, because I just sank $600 into my $900 car this afternoon. Ouch. http://www.apmex.com/category/31116/1-2-oz-platinum-eagles
MCM (Modern Coin Mart) also has some on ebay with free ship but not a lot of them. They have more private bars for sale than coins.
Recently I've picked up two 1/10 for $150 (raw) and $154 (PCGS MS69) and one 1/4 oz for $347 (raw). Would have like to pay less. : ( Rob