Silver face investments, wife mad.

I have a room full of blackface Fenders, they were a good investment when purchased though if I bought them now not so sure how much of a ceiling they'd have say 10-20 yrs down the road.
But early silverface amps like champs, princeton's and vibrolux's were a good investment if you bought them say 10 yrs ago or longer as they've gone up as well.
Big blackface amps like Pros and Twins are up there but their silverface counterparts not so much.
They made a lot of blackface amps but zillions of silverface and those aren't that desirable even today from an investment standpoint.
Back in the day everyone wanted Pros and Twins but people's tastes have shifted to smaller amps.

Once upon a time, 1970's Fenders were regarded as firewood. Then the '60s and '50s strats became really rare and prices went up for the '70s stuff. I can't imagine a world where *some* of the silverface amps don't continue to do that too. BUT, we have a world of cheap, great sounding valve amps, modelling amps that are nailing the tone and feel vintage amps, and a world where 1) most people record at home, and 2) stage volume is controlled and IRs direct to the desk are common. Big loud tube amps are not needed. That in mind, I would get rid of the big amps now, because I don't think there will be a market for them. I get the impression that the early 80's Rivera-era Fender amps are coming up now too, so I think the '70s stuff is close to it's peak compared to '80s and yes, early '90s amps. Remember, we're less than a decade away from 1990s era amp becoming "gear from my parents' generation" and that too will go up in price. If I was gloing to invest in anything, it would be instruments, not amps.

Old gear needs to be powered up for a few minutes every few months to keep its electrolytic capacitors (ecaps) serviceable; if left too long they can fail when next used, causing problems, potentially big ones.
Gear that’s known not to have been powered up for several years is best taken to a tech for a ‘soft start’ to allow its ecaps to ‘reform’.
This can be done by a competent DIYer, by building a light bulb limiter, fitting a low power bulb (eg 25 or 40W), connecting the limiter between the wall outlet and gear, and powering the gear up with all tubes removed (except tube rectifier if fitted). The bulb should go fairly bright for a few seconds and then go dim. After a couple of minutes of it staying dim, turn the power off.
If there’s a standby switch, don’t engage the standby mode, leave it in the operate mode.

That is something I wish everyone was aware of

Just scored a blackface 1965 FEIC vibro champ for $700 still with original tubes and cord. In the 1990'a I used to collect 1950's and 1960's fender guitars. For instance in 1998 the lead guitarist of blind melon sold me his 1960 strat (he used it on all their albums) for $2500. But now buying those guitars are a a refinance the house type project. Trying to have the same fun with amps which are still in the range where mere mortals can buy them. Hopefully I will end up 10 years down the road with cool heirlooms...

This. A 72 SFTR and 68 BM bought for 300ish each not too long ago, to bf and mod, ended up unaltered after a little tlc. Both sounded just right as they come, imho.

I have an early 80's Rivera era Princeton Reverb II that I see keeps going up in value, but not equaling or surpassing anything I'd buy as a replacement. Actually I'm surprised that vintage tube amps are still appreciating in value, my initial reaction would be a pandemic+aging demographic would have caused it to at least plateau. But on the other hand I've seen BIK (Boomers I Know) spending more frivolously this year, like cars guns and well, guitars. Maybe it's a mortality thing and defiance to going gently into that good night.

The revera's and the smith mods, very cool. And amps are fun, you do not even need a workshop

dining room tables make excellent hobby areas for silver or blackface!!