Not weather.
The discount store!
Out of curiosity, I bought a $5 uke there.
Figured it would be interesting to see how well a $5 plastic uke sounded. With GEARED PEGS, no less!!
Got home, took it out of the box, started tuning up.
Got about 2 & 1/2 turns on the 3rd peg, and it made a POP and snapped back a ways.
Took it back to the store, asked for an exchange, opened it up THERE, tried turning the pegs, and this time. it was the 2nd peg that gave out halfway through a turn.
So I got a refund.
And the EXCEPTIONALLY HONEST young lady at the checkout told me
"Well, they're a FIVE BELOW product. Maybe they're not MADE to be tuned!"
The pegs are entirely enclosed by the peghead, and MY guess is, they're nylon on nylon, to keep cosys at an absolute minimum.
Sadly, the TONE on the strings which DID tune up, was pretty good!
Might go along well with, "...the other half* that are just played out of tune." 
* of banjos.
It reminds me of one of my American vacations as a youngster. I discovered the 88 cents store in Everett, Wn. I felt like the king of the road with a handful of coins that gave me a choice of hundreds of items. We were staying in a state park camp site. I spotted a small copper colored coal oil lantern and bingo it was mine. I got back to the site and filled the lamp with kerosene. All of a sudden the table was covered in smelly kerosene as it dribbled out of the bojack metal connection at the base of the tank. My mom took one look at what was happening and the lamp was hurled into the garbage can. At least a uke would never leak .
As my mother always taught me: you get what you pay for. Cheap price, cheap item.
The old saying
"The bitterness of poor quality remains long after the sweetness of low price is forgotten,"
Or "Buy Cheap, Buy Twice"
IIRC, we've been satisfied with the quality/value/?? of stuff we've purchased from dollar stores. For example ...I'm gonna pay +/-$5 for a quality brush to apply resin to a smallish (?) fiberglass repair job [maybe use 4 or 5 by the time the job's finished] and just toss 'em?? In a pig's patoot!! Poor quality ones from a dollar store do the job just fine at <1/10th. the cost .... buy cheap AND be a repeat buyer ['way, 'way more than 2x.] 
I agree. The paint brushes and rollers from Dollarama range from $1.50 to $2.50. They cover well. They don't go cheap on the fiber density so they give a nice paint job. They wash easily if you use latex and who cares if you forget to clean a $2 brush after using it 3 times.
Also from Dollarama I get reading glasses for $1.50 which work well for a few minutes of use. I also get UV rated sunglasses for $1.50.. With the ability to own 3 or 4 pairs I'm always able to find a pair when I need them.
I was raised to never buy the cheapest one. Always buy the SECOND from the cheapest. Usually worked out well.
My wife on the other hand, her family always bought the cheapest. I guess she married up!
(but don't tell her I said that, or I'm a dead man)
