I have a bootstrapped business started in 2016 doing something like 12k/month in MRR but also doing 35-50k/month in consulting around it. The consulting side is not at all MRR but it's pretty stable. So even if MRR is not great sometimes it's still interesting because of consulting or even reputation.

If it was only about MRR it would not make sense compared to a full time job in IT. But all in all it's better because I was able to start other businesses, hire, and be my own boss.