Absolutely nothing wrong with a RVniversary.
My wife does not like bling, flowers, candy or exotic locals. She has never used a bit of makeup and is not into fine dining or wine. In many aspects a minimalist, as am I.
We have known each other since 1st grade, age 6, and began our love for each other at the age of 22. Have been married since 1973 and have vacationed on her anniversary where she AND I have wanted to be since the last century.
#42 in just a few.
p.s.-also RV on her birthday and any other time she says she wants, too. :B