Ive spent considerably more on my house than boat and dont have a prob with 50 p bulbs there , in fact biggest complaint that more expensive ones dont seem to last any longer ! , talking "normal" bulbs here with tongue stuck in cheek
But I am intrigued and would fit leds in boat (and house ) , but as pointed out , bit of a mine field if you cannot afford to shell out for specialist bulbs , bit of education for likes of me wouldnt go adrift , also with economies of scale surely there must be cheaper bulbs that are ok , but being sold in larger quantities by others hence lower price .
when sourcing a simple ss yacht fitting found on google, range of prices , 140 plus dollars chandler , 45 cents manufacturer in china not kidding screw in ss pad eye and plate .
ps Im not american just some bloody google searches get a wee bit carried away !!