Well, for those who want to know, Oracle doesn't shy away from pricing at all. Took just a couple of google submissions - but I found this link :
http://www.oracle.com/corporate/pricing/pricelists.html
which is ALL of Oracles "list" pricing - including the entire JD Edwards suite pricing. I like that !
(According to this, the lowest price to become an EnterpriseOne customer is about $30,000 - which includes a 5 user license for Oracle Tech Foundation and Financials. The ongoing support cost would be about $6,275 per year. Not bad at all - certainly lower than any other product out there. But, I might not have calculated the pricing correctly...)
Anyhow - OAS according to this is $11,500 per CPU plus $230 per named user for the Standard Edition, and $35,000 per CPU and $700 per named user for the Enterprise Edition. Weblogic Enterprise Server is significantly less expensive.
The other, important factor is that Oracle does not differentiate how many cores a processor has - therefore, a Quad core Processor is counted as a single processor license...
IBM licenses by "PVU" - "Processor Value Unit" which DOES differentiate based on the number of cores. Websphere costs $46.25 per "PVU" - so a single processor, Quad Core is $9,250 for the standard editon.
All these are "list" prices - and usually a company can negotiate significant discounts depending on the manufacturer. Its likely that WAS and OAS can be negotiated down to the same price for the same system...