Based sa climate ng Philippines, "must have" ba ang aircon?

I didn't think of that until I had my own baby who is very pawisin :'( I didn't know what to do last summer just to ease her irritation so my hubby and I saved up and purchased one and we're just happy that we did. Anyway, as far I knew about the climate since we lived in the Metro, it really became terrible.. very bad than before. As if everyday's on of summer days.