There are different opinions on the question of whether the purple clay pot of dozens of yuan is available. From the perspective of the cost of purple sand production, a handmade high-quality purple sand pot costs at least a few hundred yuan. However, there are indeed some inexpensive purple clay pots on the market, and these inexpensive purple clay pots are usually made using grouting technology and have a relatively low production cost. 
Grouting technology is a method of making purple clay pots, in which gypsum and other materials are used to inject slurry containing purple sand mud into a mold, and the formed purple clay pot is taken out after solidification. This production method can greatly reduce the production cost of purple clay pots, so there are some low-cost grouting purple clay pots on the market. However, these inexpensive grouting purple clay pots usually contain a lot of impurities, and may even add unsuitable ingredients such as lime. Therefore, these purple clay pots are not only not suitable for making tea, but may also cause potential harm to health. 
In addition, the purple clay pot is a perfect combination of art and practicality, it has both collectible value and appreciation potential. Therefore, a real purple clay pot** is usually not too cheap. Those inexpensive purple clay pots on the market are likely to be fakes made of inferior materials, or low-quality products made with grout technology. 
In short, if you want to buy a purple clay pot, it is best to choose a regular channel to buy a high-quality purple clay pot. If you have a limited budget, you can choose to buy some other purple sand products such as relatively low purple sand teacups. When buying purple sand products, you must carefully distinguish their authenticity and disadvantages, so as not to be deceived.