I guess people keep paintings because they think they're valuable, either in money or feelings. If it's an original painting and the artist is famous, it could be worth something and might increase in value, so it makes sense to keep it. Also, a painting might have been passed down through the family, making it sentimentally valuable. Some families might even keep a painting that's not very nice to look at, simply because it's been in the family for a long time.
我猜人们保留画作是因为他们认为它们具有价值,无论是金钱上的还是情感上的。如果是原创画作,且艺术家很有名,它可能有一定的价值,并且可能升值,所以保留它是有意义的。此外,一幅画可能是家族代代相传的,使其具有情感价值。有些家庭甚至可能保留一幅看起来不太好的画,仅仅因为它在家族中流传了很长时间。