To determine whether the acquired celebrity calligraphy and painting have value, the following steps can be taken:

了解名人字画的背景和历史：，需要对该名人字画的背景和历史进行了解。了解该名人的身份、地位、艺术成就等信息，并研究作品的创作时期、题材、风格等因素。

Understanding the background and history of celebrity calligraphy and painting: Firstly, it is necessary to have a comprehensive understanding of the background and history of the celebrity calligraphy and painting. Understand the identity, status, artistic achievements, and other information of the celebrity, and study factors such as the creative period, theme, and style of the work.

考察字画的作者：对于收购的名人字画，必须要了解作者的背景和水平。查阅有关该作者的资料，如生平经历、作品数量、作品流传情况等，并了解他的作品是否被收藏于重要的艺术机构或博物馆。

Examining the author of calligraphy and painting: For acquired celebrity calligraphy and painting, it is necessary to understand the author's background and professional level. Refer to information about the author, such as his life experience, number of works, and circulation of works, and understand whether his works have been collected in important art institutions or museums.

研究字画的品相：评估字画的品相是判断其价值的重要依据之一。观察字画的保存状态、画面完整性、色彩饱满度、笔墨技法等方面，判断其是否具备较好的品相。

Studying the quality of calligraphy and painting: Evaluating the quality of calligraphy and painting is one of the important criteria for judging its value. Observe the preservation status, image integrity, color fullness, and ink techniques of calligraphy and painting to determine whether they have good appearance.

寻求意见：如果你不是人士，建议寻找的字画鉴定机构或艺术品评估师进行鉴定。他们能够依托其知识和经验，准确评估字画的价值和真伪。

Seek professional advice: If you are not a professional, it is recommended to seek professional calligraphy and painting appraisal agencies or art appraisers for appraisal. They can accurately evaluate the value and authenticity of calligraphy and painting based on their professional knowledge and experience.

市场调研：了解相关市场的行情和行业价值，通过参考类似作品的拍卖成交价、记录等数据，评估该名人字画在市场上的价值水平。

Market research: Understand the market situation and industry value of relevant markets, and evaluate the value level of the celebrity's calligraphy and painting in the market by referring to data such as auction prices and transaction records of similar works.

综合以上因素，才能对收购的名人字画是否具备价值做出较为准确的判断。注意，在购买和鉴定过程中，要警惕虚假、仿冒字画的存在，避免受到不良的影响。

Based on the above factors, a more accurate judgment can be made on whether the acquired celebrity calligraphy and painting have value. Note that during the purchase and appraisal process, one should be vigilant against the existence of false and counterfeit calligraphy and paintings to avoid being affected by bad transactions.