For me, Yes, i'll continue appraising as a career. I enjoy it. No I don't make the Fortune 500 figures Nottrav mentions, but I'm happy with my income. I'm especially most happy with the fact that I get paid to do what I want to do and, with this job, have the flexibility I have. That, many times, is priceless!
This definitely isn't for everyone and there's a lot of BS that goes into it at times (especially finding good clients)
I'm 36 and hope to have a lucrative next 20-30 years doing this - I'm already 10+ deep, so I don't want to give up now!