Do you think this is a dumb idea?

My mom got the biggest pool we could last year. We haven't put it up yet this year. She just went and bought a gazeebo to put where the pool went (we have an outside bar that will go in the gazeebo) and she bought ANOTHER pool. This ones small, I can barely lay in it spread out and standing in it it would go to my shin. She says well switch it out next year. She always does stupid stuff like this buys big expensive things to never be used again. We have hundreds of unopened dvds, she got my 6 year old sis a bunk bed and the top will never be used she never let's kids over, she got a wooden picnicy like table that's been sat on once, we have 2 grills we never use, she just got a new trampoline this year and we have one we got from last year. That never gets used I get tired out from work and like I want to go jumping at age 20. Sure sis could use it but my moms so over protective she doesn't let her outside by herself. Sure its all bought using her money but she complains about bills and gas being high, is there any way I can talk some sense in her nonsense spending