I've been pestering them since $20 so the range of different reactions is pretty understandable . However they refuse to buy! I guess they just think they missed the boat.
Similar story here. I kept fairly quiet about it, but somehow I keep getting stopped in the halls and asked things like "hey, you're really into Bitcoin aren't you?". A few have asked if they should get into mining with GPUs, which always ends up being a half-hour discussion about difficulty increases, ROI, hashrates of various hardware configurations, etc. I don't proselytize ASICs, usually, as I really don't want to be responsible for the potential buyer's remorse of buying a BFL ASIC.
As for the girlfriend, she got a bit fussy in 2011 when NewEgg's packages arrived and I spent a solid 72 hours pumped full of adderall building out my 6950 rigs. That ended around the same time we had a fully bitcoin-funded weekend getaway. I gave her 5BTC back in February with the option to cash them out or keep them as an investment. She kept 'em, and I pretty much have a free pass to do whatever bitcoin-related activities I want now.
She even has Zhou Tonged's "Holding" (http://www.youtube.com/watch?v=NG1qooBzE2w) just about memorized now, huehuehue.