Several such craft exist at the bigger end of the regional jet market. There&#x27;s the Sukhoi Superjet 100, for example: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Sukhoi_Superjet_100" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Sukhoi_Superjet_100</a> or the Embraer 190&#x2F;195. These are both post-2000 airliners that have sold or been ordered in the hundreds (in the case of the Embraer E-jet family, total orders exceed a thousand), which carry around 100-110 passengers in 2+2 or 2+3 seating, and which are designed for much the same market niche.<p>The reason the 717 is popular is because the airframes are fully depreciated; the cost more to run than the newer jets, but are <i>much</i> cheaper to buy or lease. (Source: a guy I know who used to work in Finance for Allegiant, back before they began to diversity from MD-80 family planes.)