Just don't get an alternative, It's clear as hell stabilizers are something you don't chimp out on, I see countless people say, should I get a flycam? everyone says no, get a glidecam.
He gets a flycam, and regrets it wishing he'd bought a glidecam.
Just don't get a glidecam, you don't need one, and if you really want one so badly save up for one.