With the advent of L2s, data storage will get progressively cheaper and cheaper. This makes L2s viable as actual backends for apps traditionally thought of as web2. Most L2s have cheaper data storage in their roadmap and Mantle is live with it today.
Mantle: 0x7F200A7F5AE72105cd334d78AD94B556d773B209 Optimism: 0x8AA88a8400Be771554935fDf8bD283105C4d99fa