Where should I go to buy a new iPad?

Excuse me, I'm in the market for a new iPad and I'm wondering where the best place to purchase one would be. I've heard about both online retailers and physical stores, but I'm not sure which option would be the most convenient and cost-effective. Could you please provide me with some guidance on where to start my search? Are there any specific retailers or websites that you would recommend? Additionally, are there any factors I should consider when making my decision, such as warranty options or return policies?