it's worth it in the sense of a very solid, durable, heavy duty bmx bike. maybe not worth it if you're wanting light, trendy, etc. functionally and geometry-wise, it'll be just as good on pump track and jumps as a newer bmx bike.
I always liked the look of that frame. Haro should come out with a full chromo version with modern dropouts and bearings. I would buy for that one for $75.
There's a sweet chrome one for sale in my area on kijiji but they are asking $200.