Can't say I find this a very big problem. I mean, Wonders are supposed to take a long time to build, this is a nice way to make it take a while. I assume the earlier levels will take less KP than the higher levels, so I'm pretty sure everything will work out just fine. KP's aren't really that much of a problem either, since there are now quite a few different ways to get them.
I have not so much problems with the KP cost, but with the benefits compared to the efforts of relics.
For the monastary 2900 culture is only slightly better then a temple of the holy fire and it take ages to get it to level 10, you start with 800 culture and go slowly up to 2900, so the little more culture is negligible.
The other bonus 10% more unit health is also for level 10, so you have a much smaller reward in the whole time upgrading.
Atm we have a max. squad size of 240 possible and facing such enemys:
So even if we have the full squad size of 240, the enemy has already 3 times that much when it's an even fight 5 vs 5 squads and vs 8 squads we still face squads that are more then 2 times bigger then our own, so the 10% more health for our units in 3-4 month is a joke.
For this bonuses I should pay 63 boosted tier 3 relics? Reduce my boost by 50% points... of the most space consuming and costly manufactories to run... no thanks, I will keep my boostrate up to be able to negotiate.
Lighthouse:
Increased neighbourly help time... I'm fine with my active fellowship. If I drop I wait a couple of hours and collect my coins, when I'm polished up again.
27 random goods for returning neighbourly help, when it is finally level 10... I can return help 15-20 times in the fellowship and around 5 times in my deserted neighbourhood, so I get increadibly 540-675 random goods per day... woohooo.
Worth 50% points of my gem boostrate?... I would loose already 685 gems with two 3 hour prodcution of my gem manufatories with a 50% point reduced boostrate... so no!
I will wait for dwarven wonders and hope there is one worth it.