That's unreasonable! I'd take it for (100￥.)
How about (100￥)
I'd buy this if it were cheaper.
Lower the price, and I'll consider it.
It's a little overpriced.
I like everything about it except the price.
I've seen this cheaper (in) other places.
I heard other stores were having great mark-downs on this item.
If I buy more than one, will you give me a discount