How many of each?

Most of my variety is in tomatoes and peppers because that's what I find most interesting to grow, so it's been lots of experimentation for a few seasons. Most years for tomatoes it's 8 varieties in the greenhouse and maybe 8 or so more outdoors. Peppers this year was 20 varieties. The numbers of both will gradually reduce as I find 'keepers', leaving a bit of room for curiosity.

For everything else I usually just want dependable varieties which perform well, give good yields and taste good, so typically I will only grow 1-3 and stick with the ones which suit my requirements.