Love the idea of conifers from you. Please offer options that work for Southerners such as grafting on something other than Pinus sylverstris, such as Abies firma and Pinus thunbergii
Small like that and for that price point it sounds like a good idea. Maybe show people how easy it is to prune conifers too so when the small plants gets older they are easy to manage.
4 for 99$ seems great. I always thought it makes the most sense for shipping to usually get 4 at a time. For online I would mainly just focus on band pots and maybe some one gallons. Anything bigger than that, begins to be very costly for shipping especially if you are a smaller online retailer that doesn’t ship enough volume to get the really good shipping rates from ups or fed ex. I’m really excited to buy some stuff one everything is up and running online.