It is generally worth investing in a true 4K Blu-ray player over an upscaling player. True 4K Blu-ray players offer a number of advantages over upscaling players, including higher picture quality, wider color gamut, and support for high dynamic range (HDR). These features can result in a more immersive and visually stunning viewing experience. Additionally, true 4K Blu-ray players are fully backwards-compatible with existing Blu-ray discs, so you can continue to enjoy your existing movie collection. However, it is important to note that true 4K Blu-ray players tend to be more expensive than upscaling players, so you may need to consider your budget when making a decision. Ultimately, whether or not a true 4K Blu-ray player is worth the investment will depend on your individual needs and preferences.