I just entered Zion again with my heavily modded New Vegas and man, I remember what I loved about HH. The art design, the weather effect, the clear water, the nice wildlife environment, the trees, the nature, the tribes. Ah.
It also gave me back my insight on what I didn't like about it but man, it's sweet to be back in Zion.
So getting bored of New Vegas? Hells no! I haven't been to Zion in ages! It's reignited all the phun for me.