The answer to 'should I get water heater or' is that it depends on your specific needs and situation. Both water heaters and tankless water heaters have their own advantages and disadvantages, so it's important to carefully consider your home's hot water usage, available space, energy efficiency requirements, and budget.
Traditional tank-style water heaters are generally more affordable upfront, but can be less energy-efficient and have higher operating costs over time. They also require more physical space in your home. Tankless or on-demand water heaters are more energy-efficient, take up less space, and provide a continuous supply of hot water. However, they can be more expensive to purchase and install initially.