Why leveling up Dr buzzkill to tier 2 so expensive

M currently at captain rank 19 and m using speeder and I want to upgrade my tesla bolt to tier 2 but I can't due to the high cost of upgrading him to tier 2 and sugar lvl cap at my lvl is 275k and upgrading him to tier 2 cost about 500k sugar that's insane every other captain upgrades to tier 2 in less than 275 k worth of sugar.
As of now i might have to wait a week or two probably the latter in order to upgrade him and waste sugar on the captain's that I don't want to train just because I want to increase my sugar lvl cap or waste an insane amount of pearls which I can't do because
1 m f2p and
2nd I don't have 300+ pearls to waste

 

The only options are to wait or use orbs. It sucks, but that's how it is.

 

I think there is an error - I marked in red - 5k?
To read it better would be a few commas helpful.
==ONTOPIC==
Dr. Buzzkill is also responsible for the evolution of the Railgun, which has a huge damage - I think it is good that a T2 is not too easy to get.
And by the way I personally find Teslabold is overvalued at your level.
Only a few there knows that one hit immediately stops the tesla effect.

 

Thanks for pointing out the error it's 500k I will fix that at my lvl tesla is not overvalued currently m facing Mk4 ships mostly shooters and lvl 10 rare tesla bolt stuns about only 5.6 sec which is quite less as compared to cooldown of the weapons equiped by shooters so I feel like it should not be that high and not only that buzzkill is also responsible for the tesla Shield so I can't it to tier 2 too and there is no railgun dmg boost b/w tier 2 and tier 3.

 

My point.
The statement regarding the overvaluation was misleading.
What I meant... On the game level at 1000, your team members do not usually know, that your Stun on a ship will be lifted by a hit.
Everybody fires at everyone, whether stunned or not! And already the edge of a mortar impact makes your stun to nothing. This changes, hopefully with better teamplay in higher leagues.
So keep the Teslabolt, but focus more on something else important. For example, Speed and Swift's Talents!

This is my experience as Speeder MK5 captain

 

Ah ok thanx

 

I agree with the confusion. I don't understand as you move right on the crew, the cost of upgrading them grows very quickly. I understand why they unlock left to right, to help new players pick weapons and items that are easier to use, but to continue this "learning curve" through all the crew no matter how high your level is just really stupid. I can get a mk 4 cannon of any type easier than a mk 2 tesla shield? How does that make sense.