What makes this special is that XpressSim provides decent scenic payware scenery that is priced around the very reasonable $5 mark.
You will need to download their XpressSim installer client to access and purchase their scenery, and simply by doing so you will be able to download some sample packages.
So far, Scenery Solutions have created some very nice scenery areas that encompass not just the airports, but also the surrounding areas; however, each component is a separate purchase, so for instance, if you wish to buy the City of Florence plus Peretola Airport (LIRQ), then that'll be a few dollars more,.
Spain, France, Italy, Canada, and Greece have so far received some attention, including Ajaccio in Corsica, Florence in Italy, and six smaller yet highly detailed areas in North America.
To me, this is a sensible approach, as not only is it costs effective and of reasonable quality, but it covers a niche market insofar as users don't always want to spend a fortune on airports that they visit rarely.
Anyway, take a look at the JPG's to satisfy your curiosity, and then go download the client in order to check out one or two of their free sample areas, the interface of which also allows users to adjust scenery resolution and other parameters of the installed software.