Run your own numbers. This compares the real monthly cost of owning vs. renting on Oahu against your tax-free housing allowance — for Army, Navy, Air Force & Marines.
Most tours run ~3 years. Here's your net position if you sell when you PCS out (includes principal paid down minus ~6% selling costs):
Hawaii has a large number of leasehold properties, where you own the building but lease the land for a set term. Listings can look cheap for a reason. When the lease nears expiration or rent "steps up," value can crater — and VA loans are hard or impossible to use on short remaining leases.
Rule of thumb for a PCS buyer: default to fee-simple (you own the land too). If a deal looks too good for the area, check the tenure before anything else.
I specialize in helping military families close on Oahu homes before they arrive on island. Free consultation — no obligation.