many marinas have there own sales dept, and i've found the local guy to generally be helpful/honest. If there are marinas in your area, i would go meet the fellow/gal and spend a few hours looking around. esp. if you are looking on yachtworld for an inexpensive boat (i guess it depends on what that means to you), as the cost to ship could significantly add to your price if you find something 'inexpensive' but far away...
How inappropriate to call this planet Earth when it is quite clearly Ocean ~ Arthur C. Clarke