There have been many times where the last depth on a gate is so anti-climatic and boring and even low on crowns... I end up making it to the Core and thinking how lame it was. At least make the last depth an arena or something..
I really think Depth 28 on all other gates should be a level that's cool and worth getting to. Players should not be allowed to join at depth 28 just like Vanaduke or any other Boss depth and you should actually be rewarded SOMETHING! Because the reward of getting to the core is NOTHING unlike getting to depth 18 as an example .. at least you get tier clearance.
And what would that something be though?