I have three hand-held meters, all three of which I bought used. Many years previous -- back in the mid-80s -- I bought my first external light meter so I could use it with an old Canon rangefinder camera I had just bought. It was a cheap Sekonic. Don't remember how much I paid for it, but knowing me, probably not more than $40 or so. It was a very basic meter, but it was accurate and got the job done. So if funds are a problem, consider getting a base model from a reputable brand. It should get the job done for you until you decide you need more.
Of the three light meters I still own (the cheap Sekonic is way long gone now), one is a Pentax Spot Meter V. I bought it about 20 years ago, and paid about $60 for it. I have no idea what they sell for now, but mine still works fine, and is dead-on accurate. Recommended.
I bought a Luna Pro F around this same time. At the time, this was a very pricey meter, but I recall getting a good deal on it then, so I figure I paid probably around $100 for it or so. This meter is also one that has withstood the test of time with aplomb. Superbly accurate, and it really does a great job metering flash exposure.
About seven or eight months ago, I was in a local camera shop and noticed that they had junk bins. So I started rummaging through them, and came across a Luna Pro SBC that looked to be in pretty clean condition. It had a sticker on it that read something like "4 stops off, $5." Well, I figured that an SBC was worth $5, even if it was this far off, so I bought it from those good folks. Got it home, put a fresh 9v battery in it, and at that point, realized that the EV adjustment scale had been moved away from its "zero" setting by -- you guessed it -- four stops. So, I added a perfectly functional Luna Pro SBC to my inventory for a paltry sum.
Anyway, the moral of this story is, I suppose, keep your eyes open. You never can tell what you might come across that has value to you, and this includes light meters.