No, I never spend a dime on $$ stuff for ds. I find it all on pinterest and make it myself, including homemade slant boards, OT regimens, speech therapy materials, reading books that I custom write just for him to be decodable, high interest comprehension passages, and even social stories. I do it all with my 18k pinterest links. And I have a perfect house, like Martha Stewart, with three Christmas trees. And it's never dirty because I own two roombas, not just one.
Yeah seriously, I'm in sell mode, trying to sell off some of this expensive stuff I'm done with. Dd was $$, but ds is $$$$$$$$$. And it seems like EVERYTHING has to be in increments of $100 sigh. Nothing less than $100. Want them to talk to your kid for an hour? $100. Want to know his reading level? $100. Everything, all the time. Now the practitioners are upping their game and going to $125. It's insane.