Can we talk about how awful this quest is?
Assuming people are actually willing to purchase 5 extra entries per day (300NX each/$1.50 per day, or up to 20 passes per month from Rewards Shop) this quest still takes 77 weeks to complete. That's 539 days, or one year, six months and one week. In terms of NX purchases, that's $808.50. For a medal that gives Lv. 100, STR/DEX/INT/LUK: +7, Weapon ATT/Magic ATT: +7.
Now let's assume what most people will be doing and just taking the 2 free entries per day and that quest skyrockets to 1080 days, which is almost three full years. And remember, Monster Park can only be done up to 7 times a day per account meaning that you're only going to realistically claim the medals on just one character, every 539 - 1080 days, assuming you don't miss any days.
Now, let's remember the totally free content that only takes about 4 hours to complete and you can start at level 33: Masteria Through Time. Completing this gives you a Lv 33 medal with +15 all stats, +500 HP/MP, +8 attack/magic.
How about setting more realistic goals for this Monster Park quest, at just 7 entries per day. Or double. Triple, maximum.
Also please correct me if my math is wrong on how long/much money it takes to complete the Monster Park quests.
Edit: Slight correction. The final reward gives a badge, not a medal, but the Ghost Hunter Badge is still tons better and easier to obtain. Even the Crystal Ventus Badge is better in comparison thanks to the boss accessory set effect.

Dec
Now I have been on Maple Story for a very long time
Most buys are only to the people that has the Maple Story mesos so any new characters or character that's been on a while can't get a chair or android or pet and why because they aren't there

Mar
Maplestory Reboot Suggestions
On the other hand, if you create a character on Reboot, farm billions of Maplestory mesos on it (Reboot has 5x the Maplestory mesos drop rate) and then move it to a regular server, you have an advantage over that world's "natives" who had to work in other ways for their Maplestory mesos.

Jan
Quests give Mastery Books too late
The worst offender is the Ghost Ship quest line, which gives Mastery Book 20, but only becomes available at 150 - ten levels after the character has all their SP and should have all their 4th jobs skills maxed.

May
Make the Job Change Tokens from the Gachapon tradable to anyone
Then there's "that guy" who sees the high levels that are paying 1b to job change and go "They're paying 1b, so let's make the price of these job coins exactly 999,999,999 maplestory mesos!

Dec
[Sizzling Santa] PLEASE EXTEND THE Maplestory EVENT
After completing all of the tedious and difficult tasks of collecting items from boss monsters and collecting 900 items for a single NPC quest I finally unlocked the ability to do the Santa Missions required for the event medal rewards.

May
Cash Trades or Transfers in Reboot
we need a system where we can, in Reboot put up the cash items for a swap of some sort. Either through classic Maplestory Mesos for clothes or for the clothes for clothes swap.