914 parts investment potential?, Time to stash parts? Options

[JeffBowlsby]

I acquired my 1974 2.0L in September 1998. I have just maintained it in good order, sorted most of its quirks and enjoyed driving it. Its a really fun car as you know, even in stock form. It has appreciated probably 15-20% if you dont include regular maintenance costs - tires, batteries etc. Beats the money market...lately anyway.

In that time I have also been mystified at how certain prices have gone into the stratosphere, while otheres have just climbed following ‘normal’ escalation. For instance certain parts I bought just a couple years ago have doubled, tripled and more in just a couple years time. Has anyone else noticed this too? Got more examples? Makes me want to stockpile certain parts and then sell them in a couple years to help pay for this ‘hobby’. For instance:

2-3 years ago Now
Front turn signal lenses $20/pr $60/pr
Rear USA lenses $55 each stratosphere
Synchros $23 each $80 each
Front windshield rubber $120 stratosphere
NEW MPS $250 $750
Silver engine grille letters $45 $80
New dashcap $350 $600

For instance I think other parts may do this too soon:

OEM 2.0L Fuch center caps
F/R bumper tops
OEM dashcaps
Engine tin rubber
Euro lenses