Shangri-La's Rasa Sayang Resort and Spa is a five-star luxury resort hotel located on the scenic Batu Feringgi Beach in Penang, Malaysia. The resort has two main buildings, the 189-room Garden Wing and the 115-room Rasa Wing, with an additional 11 private spa villas. 

Over the years, the resort had installed three separate networks: 

one for the resort's operations, one for its POS (point-of-sales) system, and 

one for Internet access for guests (which was wired, not wireless). 

The networks were separate to ensure security, so that users of one network could not gain access to another. As part of a multi-million-dollar renovation, the resort decided to upgrade its network to gigabit speeds and to offer wireless Internet access to its guests. Rather than build three separate networks again, it decided to build one network using VLANs. The resort installed 12 wireless access points and 24 VLAN switches, plus two larger core VLAN switches. The VLAN architecture provides seamless management of the wired and wireless components as one integrated network and ensures robust performance and security. 

What other alternatives do you think the Shangri-La Resort considered? Why do you think they did what they did?