Less than you may think
My experience is based upon fifteen years of living aboard in California and Mexico, much of it cruising and living on the hook, and my current job as a marina manager. I would definitely concur that economical cruising can be done for 12,000 a year, all told. It can be done for WAY less, or a lot more. Funny thing is that those who do it for a lot more still seem to think they are doing "bare bones" cruising...different horses, I guess. Some people "need" a big SUV, too!Seriously, my health care is about $1500 annually ( very good coverage from a Danish company...they will only insure US citizens if the coverage is originally started while they live abroad!), REALLY thorough boat maintenace is about $3000-$3500 annually (I do most of my own work, have a twenty-one year old boat, and keep it in tip top shape. My number includes periodic big-ticket replacements, so it is an average based on many years), and living expenses are $100 per week. I can still fund my IRA in the $12,000! But, lots of shore entertainment and eating will blow the budget. Also, figure in whatever your marina costs are if you are not on the hook. If you are in the US you will probably also have insurance and you will have to pay taxes on your boat. When living in the San Diego, in a marina, with a phone and car, I luxuriated on $20,000 annually...I don't drink, by the way. Some very good friends left Mexico this spring in a Cal 34. It was in excellent shape so didn't need much maintenance on its way to New Zealand. They lived on the hook and spent little time in the bright lights of Tahiti. Their budget was $150 weekly for the two of them. Whatever was left over each week went into a savings envelope. They went through the Marquesas, the Tuamotus, the Societies, the Cooks, and Tonga, and arrived in New Zealand about a month ago with over $500 in the savings envelope and the boat in top shape!!! You CAN do it if you want to and you will be glad you did. Good luck.