Speaking as someone who only just started I would say its great if you have a close family member / friend to take the plunge with you.
My brother-in-law picked up the core and 1 x-wing and 1 tie fighter back in August of this year. We played several games with that set and he acquired more expansions and now owns at least 1 of everything (wave 5 not incorporated). My wife doesn't mind if her bro comes over to play with spaceships
Needless to say we both like strategy games so I started my own collection 3 weeks ago and now have a core, rebel aces, imperial aces, tie advanced, tie fighter, firespray, lambda, e- wing, x-wing, z-95 headhunter, set of dice, b-wing, and hawk. Today I just picked up a decimator and a yt-2400 for $97.00 in Canada.
It can get addictive and relatively expensive fast (not as expensive as 40k). I think the biggest draw is having someone to feed off and play against. Maybe if you have stores in your area (here there are 2 with random folks Thursday nights and Sunday afternoons) you can join a weekly game night.
I think it's worth the investment and my pool table makes the perfect battleground