Hey Guys need some direction: To sell or hold on to ?? Gen 1 Glock 20 circa 1991 Ive had this gun since new and only shot it a few times (less than 100rnds). I have all paperwork , box and 2 mags . I am thinking of selling just bcause I dont use it . But I couldn't find any older ones for sale to compare prices? Are thet rare in like new condition? Help?