Most people would consider a passage
by new sailors
from Los Angeles to New York ambitious and risky for these reasons (all my opinion and of course there may be exceptions):
(1) Distance vs. time. 6000 sea miles in 90 days is a lot of ocean to cover in a 30 ft. boat whose hull speed
is only about 6 knots in good conditions. But you won't have very good conditions most of the time, and the winds will be against you some of the time, so you might be traveling 7000 nm or more. And in a 30 footer, you probably won't have a big crew, and may have to reduce sail or seek port at night, so you may be lucky to cover 75 miles per day. And new sailors
may not know how to optimize their voyage planning, weather
routing, boat set-up, and sail trim to get the most performance out of the boat. So, even trying to sail day and night, you're already up against a tight schedule.
And will you feel up to sailing for days on end when it gets rough? Will you have enough fuel
on board if the winds die for several days at a time? Or will the tight schedule force you to sail when conditions are against you and maybe hazardous? Tight schedules often pressure sailors into poor decisions.
As newer sailors, you might be less aware of which areas have more concerns in terms of hazards (weather, shoals, harbor entrances, security
issues) and having to deal with hazards under time pressure is not at all good.
And that doesn't include an allowance for arranging passage
through the Canal. You could lose a few days working with the agent, filling in forms, arranging for line handlers, arranging to spend a night in mid-transit and paying the penalties for not being able to do the passage in one day (depending on direction and speed), etc.
And does that allow you any time for sightseeing and appreciating other cultures? You'll be traveling through some gorgeous places. Why wouldn't you want to enjoy them? Why go to all the expense and risk and hassle of sailing for several thousand miles without taking time to appreciate the local sights, countries, languages, and cultures?
And that doesn't allow you provision for delays associated with breakdowns. Do you know the boat well enough to fix it yourself and will you have a complete set of common spares and consumables? Or will you be stuck in foreign ports
waiting for replacement parts
to be flown in and, you hope, not get stuck in customs
If you're on a schedule or want to save money, trucking the boat would be far cheaper. Sure, it may be many thousands of dollars, but the trip on water would also have huge expenses, plus lots of wear and tear on the boat and probably a fair number of boat systems needing repair on the way, along with such expenses as the Canal transit fees.