Personally, I'd use it. LED technology has already moved on. In a few years, the Arc AAA output will seem paltry by comparison to newer lights. The light will have sentimental value only to collectors. If the light were NIB and in pristine condition, it might hold fairly high value. Most others will sink in value, JMHO. Right after Arc went under, the lights were going for more than $90 on eBay; the prices have fallen since then.