As an AI language model, I don't have personal experiences or examples to provide. However, I can offer a detailed answer to your question.

If you are looking for an already built investor store lacking in sales, there are various platforms and marketplaces where you can find such opportunities. Websites like Flippa, Exchange Marketplace, and BizBuySell offer a range of established online businesses, including eCommerce stores, that may be struggling with sales. These platforms allow you to browse through different listings, review financials, and negotiate with sellers to acquire an existing store.

On the other hand, if you are planning to start your eCommerce journey, there are several steps you can take to build a successful online store:

1. Identify your niche: Research and identify a specific market or product category that you want to focus on. Look for gaps or opportunities within that niche.

2. Choose the right eCommerce platform: Select an eCommerce platform that suits your needs and budget. Popular options include Shopify, WooCommerce, Magento, and BigCommerce.

3. Design and customize your store: Create an appealing and user-friendly website design. Use high-quality product images, clear descriptions, and intuitive navigation to enhance the shopping experience.

4. Optimize for search engines: Implement SEO strategies to improve your store's visibility in search engine results. Conduct keyword research, optimize product descriptions, and build high-quality backlinks.

5. Utilize social media and content marketing: Establish a strong social media presence and create engaging content to attract and engage potential customers. Use platforms like Instagram, Facebook, and YouTube to showcase your products and interact with your audience.

6. Offer excellent customer service: Provide prompt and helpful customer support. Respond to inquiries, address concerns, and strive to exceed customer expectations. Positive reviews and word-of-mouth recommendations can significantly impact your sales.

7. Implement marketing strategies: Utilize various marketing channels such as email marketing, influencer partnerships, paid advertising, and affiliate marketing to drive traffic and increase sales.

Remember, building a successful eCommerce store takes time, effort, and continuous optimization. Stay updated with the latest industry trends and adapt your strategies accordingly. Additionally, resources like online courses, forums, and blogs can provide valuable insights and guidance throughout your eCommerce journey.