We get a sense how important the ball was to the locals as opposed to newcombers at Netherfield.

In Chapter 3 -- We learn what each Bennet woman considered a success and

The evening altogether passed off pleasantly to the whole family. Mrs. Bennet had seen her eldest daughter much admired by the Netherfield party. Mr. Bingley had danced with her twice, and she had been distinguished by his sisters. Jane was as much gratified by this as her mother could be, though in a quieter way. Elizabeth felt Jane's pleasure. Mary had heard herself mentioned to Miss Bingley as the most accomplished girl in the neighbourhood; and Catherine and Lydia had been fortunate enough to be never without partners, which was all that they had yet learnt to care for at a ball.

And then Mr. Bennet needs to be given a dance-by-dancy account of the evening.

on the present occasion he had a good deal of curiosity as to the event of an evening which had raised such splendid expectations. He had rather hoped that all his wife's views on the stranger would be disappointed; but he soon found that he had a very different story to hear.

And then Chapter 5 is also a recount of the ball.

That the Miss Lucases and the Miss Bennets should meet to talk over a ball was absolutely necessary; and the morning after the assembly brought the former to Longbourn to hear and to communicate. Ch 5

Compare this to Netherfield discussion, which consumes all of 2 paragraph.

The manner in which they spoke of the Meryton assembly was sufficiently characteristic. Bingley had never met with pleasanter people or prettier girls in his life; everybody had been most kind and attentive to him; there had been no formality, no stiffness; he had soon felt acquainted with all the room; and as to Miss Bennet, he could not conceive an angel more beautiful. Darcy, on the contrary, had seen a collection of people in whom there was little beauty and no fashion, for none of whom he had felt the smallest interest, and from none received either attention or pleasure. Miss Bennet he acknowledged to be pretty, but she smiled too much.

Mrs. Hurst and her sister allowed it to be so; but still they admired her and liked her, and pronounced her to be a sweet girl, and one whom they should not object to know more of. Miss Bennet was therefore established as a sweet girl, and their brother felt authorised by such commendation to think of her as he chose. Ch 4