Plan description supports language strings. Simply set the description to a language key then translate that key to your description in a language override. Same applies for plan name and many other parameters. Example as follows.
Description: PLAN_TYPE_A_DESCRIPTION
Language Override
Key: PLAN_TYPE_A_DESCRIPTION
String: This is my plan description.
You'd then just need to set that language key into each of your plans instead of having to supply the full description to each. It also makes editing all of their descriptions simple from a single location. See the below on how to use language overrides.
www.joomlapolis.com/blog/kyle/18701-language-overrides-have-arrived