You can buy your pack for splinterlands with a voucher for splinterlands or you could buy a pack without voucher for a secondary market like hive-engine.com for example and in this secondary markets the voucher is expensive than a pack, at the time of making this post the voucher price is 14.32 and the chaos pack is 11.07 both tokens are expected to go down on price eventually, lot are expecting the pack price on secondary market even cost less than 4 dollars at some point.
So why would you buy a voucher with higher cost than a pack and them go back to splinterlands to spend 4 more dollars? simple the packs you buy directly for splinterlands comes with some benefits as getting a chance of promo cards, the packs of secondary markets not.
As a small investor I going to wait for a cheap prices on packs around 4 dollars or buy them directly for splinterlands when the vouchers are no longer needed.
There is a way to get packs to less than 4 bucks right now and is to buy them in group or with a big investor that have a lot of vouchers as you can get big discont by buying more than 2000 packs at once, outsite downs of this the one buying the pack will keep all the benefits of them you will only get the pack and you should only do this with someone you trust or you may get scamed.
Another post you may be interest:
How to Beat kron and LLama combo with level 1 cards: https://www.splintertalk.io/@caimanx/here-is-how-to-beat-kron-and-llama-annoying-combo-with-level-1-cards