For
It saves money and reduces waste.
Against
Second-hand items may be lower quality or unreliable.
Anonymous excerpts, translated where noted.
“And second hand can help, I got half my clothes from there for three kopecks”
“Most everything I try to buy secondhand. It’s about waste too, not just money.”
“within about 30 to 60 minutes I spotted a bed bug crawling on my pillow.”
“With a used car, there are instances where the owners end up having to throw money at repairs”