better can't be bought mechanism

_posts/2004-05-12-qy70.md

@@ -13,6 +13,7 @@ tags:
 image: /assets/img/posts/qy70s.jpg
 download:
 link:
+check_this_if_cannot_be_bought: true
 stores:
   - name: ''
     url: ''

_posts/2004-12-23-santas-audioserver.md

@@ -15,6 +15,7 @@ tags:
 image: /assets/img/albums/santas-audioserver/10-santa-simulator.jpeg
 download:
 link:
+check_this_if_cannot_be_bought: false
 stores:
   - name: Bandcamp
     url: 'https://villamagica.bandcamp.com/album/santas-audioserver'

_posts/2005-06-21-coolometrics.md

@@ -16,8 +16,9 @@ tags:
 image: /assets/img/posts/coolometrics.jpg
 download:
 link:
+check_this_if_cannot_be_bought: true
 stores:
-  - name:
+  - name: ''
     url:
     icon:
     download: false

_posts/2008-07-07-artifexbcn.md

@@ -15,8 +15,9 @@ tags:
 image: /assets/img/posts/artifex.jpg
 download:
 link:
+check_this_if_cannot_be_bought: true
 stores:
-  - name:
+  - name: ''
     url:
     icon:
     download: false

_posts/2008-10-17-lonely-hearts-club-techno-band.md

@@ -12,6 +12,7 @@ tags:
 image: /assets/img/posts/img-20120514-214237.jpg
 download:
 link:
+check_this_if_cannot_be_bought: true
 stores:
   - name:
     url:

_posts/_defaults.md

@@ -9,6 +9,7 @@ tags: []
 image: ''
 download: ''
 link: ''
+check_this_if_cannot_be_bought: false
 stores:
   - name: ''
     url: ''