Fair enough. Right off the bat, since you like Gabor Szabo, I would recommend you getting ASAP both "Impressions of the Middle East" and "The Wailing Dervishes," both on Atlantic, circa 66-67. They both have a groovy eastern vibe to them that I think you'd love.
Also, the early bossa LPs - one on UA, and the other, "Do the Bossa Nova" are worthwhile.
Generally, though, most of his LPs from the 60s - if not exactly groundbreaking or surprising - feature nice latin grooves and vibe work by Roy Ayers. Considering what these LPs go for (i.e. cheap), they've rarely disappointed me.
Agree that his late 60s and 70s output is on the commercial side of the spectrum.