Why 2600XM routers?
    * Inter-VLAN routing (not supported in 2500 series)
    * Support for Cisco SDM GUI configuration tool       
    * Support for Advanced Security VPN IOS               
    * Modularity for future expansion (for CCNP/CCIE) 
    * Support for ALL Routing protocols                         
    * Support for MPLS (for CCNP/CCIE)                          
Why 2610 routers?
    * Inter-VLAN routing (not supported in 2500 series)  
    * Support for Advanced Security VPN IOS                  
    * Modularity for future expansion (for CCNP/CCIE)    
    * Support for ALL Routing protocols                            
    * Support for MPLS (for CCNP/CCIE)                            
Why 2900XL switches?
    * Modern Fast Ethernet IOS switch (1900 is Ethernet non-IOS switch)
    * Near complete command set as tested by Cisco                         
    * 802.1q and ISL support for VLAN trunking and routing                
    * STP, PVST, HSRP, 802.1p QoS, and Fast Etherchannel