Can someone educate me on the Catan expansions?
We have the original plus the extension for 5-6 players (2 of each actually, as my in-laws love it so much they bought a set for the lakehouse).
In glancing at the expansions, I like the idea of a Harbormaster for 2 points (akin to Longest Road or Largest Army) and I also like the idea of turning a desert into a lake (plus the chevron pieces that go on the perimeter) and then having the fish to purchase things/move the robber or even "catch" the Old Boot. But like, that's $40+ for some fancy cardboard as I think both are contained in the Traders & Barbarians pack.
I'm tempted to add in those two elements without buying it. Has anyone done something similar? E.g. the fish tokens have 1, 2, or 3 fishes on them. Seems I could just use extraneous dice or playing cards or something simple and color-coded for that, and then for the Harbormaster special 2 point card, just use some other totem. The trickiest part would be replicating the chevrons for the 4,5,6,8,9,10 pieces. For the "lake", I feel you could just turn the desert upside down (it's already blue on the other side!) and know that it's for the 2,3,11,12 rolls.
Am I missing anything? What about the other expansions? What are the best aspects that those add? How easy are those aspects to add in without buying fancy cardboard? Or the opposite question is also helpful for me at this point - which expansions of Catan are NOT worth it?
Edit: changed 'extension' to 'expansion' in one place.