Then never pick up a Kindle Fire HD or HDX
Seriously - I love my iPad Air (as I loved the Mini, 3, 2, and original iPad before it) ... but the speakers are NOT one of the reasons. Low volume, crappy low-frequency response, one-sided orientation, and so on.
Note that it isn't something Apple is touting - and also how the 'thin & light' 7" Kindle Fire HDX is nearly as heavy as the 9.7" Air ... different products for different needs.