Are parts going to get harder to come by

[kk2002s]

Last fall I decided to start buying parts to replace key front suspension components. At the time I just bought and there was no issues with inventory
- Tie rod inners/outers
- drop links
- Sway bar bushings

I wanted to replace with TRW parts
I did replaced the Sway bar items as no alignment was needed for them
Last thing I needed were the (2) lower Control Arms. I started late November scouring the innerweb looking or someone that had them (TRW) in stock at a normal price ($437.00 for one Genuine Porsche Lower control arm - come on)
Last week someone had them stock,I put order in for (2). One shipped the other went on extend back order
I found another supplier that had them in stock, cancelled back order and ordered the second one. It arrived today. I'm am such a geek that I got so exceeded I finally have them (There is something wrong with me

There where knock offs available but not the TRW brand. Is this going to start becoming more common place where original mfg parts are going to get more difficult to buy?
This exercise did introduce me to other suppliers out there. It takes a little more effort to find suppliers for certain parts