Other Sun purchase benefits
Oracle was able to essentially kill MySQL, which was the biggest threat to its cash cow. DB2 and Oracle now rule the market.
Oracle owns JAVA and SAP is screwed. SAP retooled their who application stack on JAVA and is about freaked about asking Oracle for the re-license cost.
Oracle is milking that cow better than anyone else. They have no customer compassion so eliminating 9-5 service and forcing every dusty box to be under service.
Oracle knows how to take account control to the max and suck more wallet share from customers, personally I prefer the dual vendor strategy. We played IBM vs. Amdahl and now its Oracle and IBM.
Microsoft is the odd man out and now that M$ft is investing in Dell expect HP to sink even further into the abyss. Microsoft is going to buy Nokia and Dell to become competitive again vs. Apple. They will fail but that is their strategy.