Reply To: Dual Citizen

You can visit the US without a visa (there is a bill pending to add Israel to the list of countries with waivers).
If you are otherwise eligible you can collect Social Security while living in Israel (into either an American or Israeli account).
You can vote in both countries’ elections.
Some jobs are reserved for citizens.
Disadvantage: you will be required to report income (if you receive more than the mean amount for reporting)and assets (if they total at least $10K) to the IRS although a bill is pending in the Congress to change to residency-based taxation.