For me, I had a small problem at first when I started playing again, since I usually choose Rzeszow as my first base, as it isn't exactly the most profitable base to have (since with the aircraft I got as default, it caused me to run into some range issues), but after the 2nd year, I got my first Let-410, then ordered a few more, then my first IL-14M, then more Antonov An-24s and so forth. So basically said, things will pick up once you get to a point where you can start ordering 1 medium sized T-Prop a day. I'm currently at a point where everyday I get a new set of aircraft delivered, and every day I get to place an order for a set of aircraft.
Honestly, the best thing that this could be compared to is growing a plant, like a tree or a shrub of some sort. You plant the seeds, and for some time, not much is going on, then after some time, you get to see your plant spring into action and you do all sorts of stuff, like picking off fruits, or having to shape it up to look good, and if you're in a place like Florida, it's something you'll usually be doing at least once a week (when it comes to shrubs, though you'll still get Oranges and other citrus fruits basically year round too.
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