Seriously, sorry, you are sounding like a broken record. Since your posts seem to be all about "this and that feature taking out the fun" and so forth?
In real world 737-300 was launched in 3/81, and first deliveries happened in 11/84, that's a 3,5 year gap between the two. In the sim we have a certain window for the plane manufacturing dates compared to real life, as you can read from the manual
. This prevents players guessing when the plane is out and setting their alarms for it, which would seriously ruin the "fun" factor for majority. And with the randomized release date of B733 the difference between launch and 1st delivery date is still exactly the same as it was in real life (or what is set to master database that is ..) - just the random factor added.
edit: Oh well, I misread part of your message. You were referring to the delivery date of YOUR order, and not the first delivery, sorry.
As you see, even with the randomized settings for the dates, the order books fill in extremely quickly. There are 844 pending orders for the aircraft. The order books are NOT filled in at first-come-first-served basis fully, but the system will leave gaps for new orders for players to get the first planes more quickly. BUT when the orders exceed certain numbers (like now) there is simply no space for the gaps anymore as it would make the queue ultra-long.. But if you look at the delivery lists in 1988 and 1989 you can see the principle. And I would also guess that when -400 and -500 variants are introduced the production rate will go up, pushing the order dates forward.