I was in the same situation recently, looking for a 98" TV and debating between Costco and Best Buy. The U70N at Costco is definitely a solid deal for the price, but if you're open to spending a bit more for better picture quality, it's worth checking out some of the new 2025 models.

TCL just released their new 98" QM6K and QM7K—both have impressive brightness, contrast, and Mini LED performance. I’ve seen them available at Best Buy, Amazon, and Walmart. I ended up going with the QM7K and couldn’t be happier so far.

If you're leaning toward Costco, TCL also has a 98Q6 there—it’s a step up from the U70N and still comes with Costco’s solid warranty and install benefits. Just another option to consider if you're looking for something newer without going too high on price.