Salesforce.com may feel like Web 1.0 software, but SAP feels like terminal style software. The syntax of ABAP (SAP script language) is somewhat similar to COBOL: http://en.wikipedia.org/wiki/ABAP . Microsoft Dynamics CRM feels like Web 2.0. Oracle bought SiebelCRM and it's seem more modern.

This says nothing about their capabilities, they are all feature rich. And conservatism in ERP and CRM business is valued by enterprise customers.