In Feb 2003 Boeing performed some 11 sales demo flights into Paro using a B737-700
That must have been when they were sizing up the B737-700 or the A319 as replacements for their 146s. Looks like the Boeing demo was a bit in vain, the A319s came in late 2004. I wonder if Boeing offered them with more powerful engines than standard, like Airbus did. Druk had actually ordered the BAe RJX (heavily reworked 146/RJ), development of which was abandoned by BAe in 2002, so they had to gofor something else. The 146s were disposed when the A319s arrived so if there's a video showing both, must have been taken around end of 2004 (maybe as the A319 was the new toy).