Re: Should a used boat come with life vests, lines, bumpers?
don't expect it but see it as a bonus. Some equipment such as an anchor/line or fire extinquisher I'd expect before loose stuff like lines and PFD's.
I bought 2 boats last year--one the guy let me have a gallon of Yam oil, ring free and a hand-held VHF (what he used; I mounted one but use the hand held hunting) compass, GPS/fish finder and the anchor and extinquisher.'
The other I bought for the motor (70 hp) for $900. When I asked about the stuff, he said just take it all (I left the pinestraw). Got anchor, lines, bumpers, lures, new pfd's (orange) fish finder, mounted vhf (dead) compass, oil, charts, some tools and fishing stuff--it was like a rolling yard sale. Kept the stuff, kept the motor, sold the hull and trailer for $500.
One of the advantages to buying used is that you often get a lot of stuff that takes a lot of money to buy new, or years of scavenging to accumulate. I'm lucky that Ilive in a boating town so our yard sales are full of good stuff.