That's great that you have managed to avoid treatment thus far. Sounds like exactly what you should do for a count range like you have. Have you only had one count of 25? There really isn't a ton of difference between 35 and 25. I wouldn't make any treatment decisions based on one single count number unless you happen also to be having active bleeding or significant symptoms.
Steroids are no fun at all in terms of side effects, so you are smart to want to avoid them. If you aren't having any major symptoms, I'd want to wait a few weeks and do another count to see where you are. I have had so many random count dips over the years that sometimes happen for no apparent reason at all. I wouldn't want to jump into a treatment because of a single count number.
Good luck!