Jesus Christ man! You're bitching about 70 dollars when your mother has lost her beloved pet? You are indeed coming across as very heartless, at least to me.
And count yourself lucky: here they charge 230 Euro to cremate a pet, and I had to get two of ours done (not at the same time) but it was money well spent as their little coffins are in my bedroom and always a constant reminder of the love we had for them, and that they returned to us.
You can't put a price on a pet's love. 70 dollars. GTFO and get over it.