Sound from front wheels like an aireplane taking off

[shevin]

I have a BMW X5 2003, 3.0 and it has 213000 miles on it.

a few days ago I drove out of state (380 miles), and the last 40 miles, I heard a noise from wheels like an airplane was taking off.

this thing had happened once before but it went away day after. a few months ago I heard same noise, then I took it to the mechanic, I had suspected it to be ball bearings
he drove it quick and the noise had gone away and he said it is probably nothing serious.

now that it happened again when I got to my destination, I showed it to a mechanic, and they said the Boots for the axels are torn and the grease comes out of it.
and they said they don't have original part for it, but they can build one for me for $1600.


The mechanic advised not to drive it back 380 miles. I drove it back and I didn't hear any noise ( except the first 5-6 minutes).
right now the car doesn't have the noise.

What do you guys think ? should I show it to another mechanic and spend money on it ? (now that it doesn't have noise ? except sometimes the first few minutes)

Pictures:



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