The prices of crates vary very much from actual buyable things. To put it into perspective for you...
Your crate is 3 cents in USD.
A premium gift is $5 in USD.
If you are able, spending a small $5 on the game is very much worth it since you get premium and some items. If you cant spend the money you can always try asking a good friend whos also on steam. I bought my cousin premium before steamcards were released in Canada because he was too young to have a debit card that worked online.