Not necessarily porn related but definitely can be, I was at least horny motivated with my purchases. But in essence have you ever went out of your way to spend money on something that you thought you would get a whole lot of use out of and then never used or used only once or the novelty instantly wore off?
The list of things I have is rather long but two ones of note were:
- A VR headset to play porn games on (the list of good games in VR ran out rather fast I found, that and I had little room to play it)
- An expensive drawing tablet to learn to draw smut and is still in it's original packaging.
But if I were to mention non horny related things they would also be:
- A full 3D tracking rig (also for VR but for animation) I have plugged them in and setup the software and not used them in over a year.
- A digital keyboard to learn piano with which is now a clothes rack.
- A 3D printer to print and paint various things that I never actually thought about until it arrived.