Anyone know about K'Nex?

[choc]

I've seen 2 different K'Nex boxes. This one is £15 reduced from £30 has around 470 pieces

https://www.tesco.com/direct/knex-50-model-big-value-tub-12420/515-2897.prd?skuId=515-2897

This one is £12, standard price around 400 pieces

https://www.tesco.com/direct/knex-35-model-set/747-3232.prd?skuId=747-3232

This one is £15 standard price and has the most pieces, 600

https://www.tesco.com/direct/knex-35-model-set/747-3232.prd?skuId=747-3232

But what is the difference between them?! The last one seems best as it has the most pieces but why is the first one originally so much more expensive?
I have gotten myself all mixed up over it now. Need fresh eyes please!!

 

[becsboo]

the only thing i know about knex is it gets everywhere lol
i think the last one looks the best the 15.00 600 piece

 

[babyv13]

I think the £30 one has an extra 15 different possible models by the looks of it!

I think I would just go for the 600 piece one!

 

[choc]

Thanks, I think you are right. Why do they make it so confusing 😅

 

[babyv13]

to keep us on our toes

 

[kirstybumx3]

I have no idea about knex but I've brought a box anyway

 

[WackyMumof2]

My eldest has a SHIT TONNE of it and wants the 100 model set this year.
https://www.toyworld.co.nz/knex-imagine-100-model-set

In my experience, it comes down to size of the sets and difficulty usually so why the smaller set is the most expensive I couldn't tell you! My only guess is that the 2 bigger sets are no longer being manufactured but don't quote me on that.