Advantages: Easier to install in existing structures. Potentially DIY friendly.
Disadvantages: Expensive/proprietary products, may be considered unsightly, potentially subject to physical damage.
Advantages: Lower material cost, completely hidden installation. Protected from physical damage. Standardized materials, widely available.
Disadvantages: Requires opening walls/floors/ceilings in existing structures for access. Potentially higher installation labor costs. Less DIY friendly.