The Existane of teh 747SP was to have a plane that was smaller and lighter, with a 747 design thta could go farther than the 747-100. The technology didn't exist at the time to make a 747-100 have increased range. Once the 747-200 then the 747-300 came out, the 747SP was obsolete as the latter could carry way more people, cargo with the same range. I'd rather be flying a full-sized 747 say a -200 or -300 (or -400 [even a -8]) there, its still a 747, but bigger cooler, and the 747SP doesn't even land shorter.