PRO
-stability
-Lightning protection
-Beach-stable
-better ground contact
-correctable
-value preservation
-ecological
-expandable
-collision-safe
-can be repaired anywhere on Earth
-no problem with ice cream
-no corrosion
-good for an electric fence
-well to the process
-It can work accurately
-waterproof
-dry
-Interior is simple and steiffer
-refractory
-looks not so rich, so less pirates
-better to see on the radar
-can be repaired at sea
-easier to calculate the statics
-Vibrations are less problematic
-can be built more robust
-Hatches can be made poet
-Centerboard case kanncstabiler be created
-Rudder bearings is precise
-better for a heavy seas
-in the crash of less harm
-Not uproot fittings
-can be combined well with facade construction material
-can be used as a ground for amateur radio
-scrub-fest
-allows cranes to 4 ropes, also with a tire crane

CONTRA
-Surface in the hot sun
-more expensive
-needs more time
-bad paintable
-elektrokorrosion vulnerable
-needs special antifouling
-severe
-welding not easily
-the elektrokorrosion must be observed
-vibrations are transmitted loud
-Aluminium surfaces are moist in the morning
-wifi is in worse
-alustaub is hazardous to your health