If the Sony was used for in-store demos, maybe check how much usage is on the lamp (total rating is only around 2000-3000 hours; lamps are expensive).
If the usage is low and you don't need extra brightness (ie, nice dark, light-controlled room), then yeah: I'd say Sony as well.
If they stock both projectors, it might also make sense to demo them both before making a final decision.
BenQ HT2050 Projector; Kodi (on Ubuntu, OpenELEC & S802) via Sony STR-DH540 AVR with Boston Acoustics SoundWare XS SE 5.1 Audio + Jamo 210 Sub. Emby for Mobile Streaming.
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