To buy a wonderful laptop, you should consider the following factors:

1. Purpose: Determine what you will be using the laptop for. If you will be using it for basic tasks like web browsing and word processing, a lower-end laptop may suffice. However, if you will be using it for demanding tasks like gaming or video editing, you may need a more powerful laptop.

2. Processor: The processor is the brain of the laptop and determines its speed and performance. Intel Core processors are widely used in laptops, with Core i5 and i7 being the most popular for high-performance laptops.

3. RAM: Random Access Memory (RAM) affects the laptop's ability to multitask and run multiple programs at once. Aim for at least 8GB of RAM for smooth performance.

4. Storage: Choose a laptop with an SSD (Solid State Drive) instead of an HDD (Hard Disk Drive) for faster boot and load times. Aim for at least 256GB of storage, or higher if you need to store large files like videos or games.

5. Graphics: If you will be using the laptop for gaming or video editing, consider a dedicated graphics card for better performance.

6. Display: Consider the display size and resolution, as well as features like touchscreens and 2-in-1 functionality.

7. Battery Life: If you will be using the laptop on the go, choose a laptop with a long battery life.

8. Brand and Warranty: Choose a reputable brand and check the warranty before making a purchase.

9. Budget: Set a budget and stick to it, but don't sacrifice quality for a lower price.

Once you have considered these factors, do your research and read reviews to find the best laptop that meets your needs and budget. You can also visit a store to test out laptops and ask for recommendations from experts.