John - are Revelation Plössls not actually GSO's? I ask as GSO has been making some very nice optical gear lately. And from their prices - you'd not be likely to guess this. Many different outfits are using GSO equipment, but with their brand-names on them. This can be confusing to newcomers in the world of astronomy and the gear used by us people.
My point to you, Edward, is that if you run across some nice looking, but quite inexpensive (compared to other things like TeleVue® Plössls for example) gear bearing the GSO brand - it's likely very good and you're looking at a true bargain. And this of course also is true for the branded GSO goods out there. As I think the Revelation's are.
GSO is the abbreviation for Guan Sheng Optics located in Taiwan - the Republic of China.
Have fun -
Dave