More than 60, but I think I have less than 100, from about 8-10 different vendors. In my defense, I'm constantly switching flavors and have never had an ADV because I get sick of anything after a while (this is also why I drip almost exclusively), no matter how tasty the
juice is. Also, I vaped only flavors from two vendors for almost a year because I couldn't figure out what I was reacting to, and there were only two vendors I'd tried that didn't cause a reaction. So, after I figured out that it wasn't PG, I started buying samples and small bottles from all the vendors I'd wanted to try but had been afraid to.
In a typical day, I will vape between 3 and 10 different flavors, unless I'm trying a sampler pack, in which case I might vape even more.
EDIT: Oh and most of those are 15mL or less. I think almost half are 3-10mL bottles. I only have maybe 5 bottles that are more than 15mL, and quite a few of the smaller bottles are almost empty, now.