http://lesbianlife.about.com/od/wedding/f/MarriageBenefit.htmHere are some of the legal rights that married couples have and gays and lesbians are denied:
1. Joint parental rights of children
2. Joint adoption
3. Status as "next-of-kin" for hospital visits and medical decisions
4. Right to make a decision about the disposal of loved ones remains
5. Immigration and residency for partners from other countries
6. Crime victims recovery benefits
7. Domestic violence protection orders
8. Judicial protections and immunity
9. Automatic inheritance in the absence of a will
10. Public safety officers death benefits
11. Spousal veterans benefits
12. Social Security
13. Medicare
14. Joint filing of tax returns
15. Wrongful death benefits for surviving partner and children
16. Bereavement or sick leave to care for partner or children
17. Child support
18. Joint Insurance Plans
19. Tax credits including: Child tax credit, Hope and lifetime learning credits
20. Deferred Compensation for pension and IRAs
21. Estate and gift tax benefits
22. Welfare and public assistance
23. Joint housing for elderly
24. Credit protection
25. Medical care for survivors and dependents of certain veterans
These are just a few of the 1400 state and federal benefits that gays and lesbians are denied by not being able to marry. Most of these benefits cannot be privately arranged or contracted for within the legal system.