I use to have many more guns than I do now, mainly lower dollar guns and no rhyme nor reason to my collection, so many they wouldn't all fit in my first safe-a good rule of thumb is to figure they will only hold 1/2 the advertised capacity. I also didn't have more than a box two of ammo for most any gun. I got my first really nice gun, an S&W 41 and started getting a yen for those nicer guns. Being cash short, I started selling & trading moving down in number and up in quality, everything fit in my safe and I had more fun shooting.
Nowadays I have taken a liking to working guns, AR's, Glocks, Ruger DA's and a smattering of others, and every gun I own is very good quality and is shot often. I am well stocked with ammo for all as I've also consolidated calibers. I have a purpose for all guns owned and only one safe queen remains, an FA 83 .475 that I wanted ever since Ross Seyfried first wrote about it.
Personally I've found the enjoyment I get from owning guns isn't about the quantity owned but the usefullness and utility I get from them. YMMV