Girlfriend's mom threw my Cardas out with trash

I guess this is late to suggest this, but, home insurance might actually cover this, minus your deductible. However it could result in higher rates for a few years.
Art
ps: There is no limit the extent to which women will go to test a man's composure.... if you kept your cool, and impressed a good woman, then it was worth the price.

Next time, throw out you mother in law..... before she can unpack !

She's a mom, ergo she is therefore entitled to invoke the; "It's all for the best, if you keep playing with such things, you'll probably trip over them and poke your eyes out.", anytime she pleases.

The obvious answer is to take it out in trade. However if you confess how much those cables really cost and the two of you get married, then you may have severely hobbled future purchases.

It's time for a new GF. It'd be afraid if you had a baby...it might get thrown out with the bath water.

She owes you the replacement cost of the IC's.