Re: Such is life. Have a look around - it's a constant race of arms.
"If you had a leaded gasoline car, you'd be out of luck, unless you did whatever you need to do to keep them running on modern gas.
If you had bought lots of cassette tapes, you'd not have them working on any recent equipment.
If your light fixtures for some reason insists on incandescents..."
For most cars the mods to the engine to cope with unleaded are fairly easy. Making it run as well on the unleaded carcinogenic hooch that passes for petrol is another matter. You may need to adjust the timing curves (distributor mods) and carburation as well as fittting hardened seats to the exhaust ports and probably new valves. Hint : these may already have been fitted from new eg in any ally head.
Or you can add an additive to the petrol. There are at least a couple that have been tested thoroughly and are proven to work. Or, in the UK add your own lead tetra ethyl. Be careful though, organic lead is nasty stuff.
My beef though is that you pay through the nozzle for the extra cost of manufacturing the new sh&t and then have to pay again to get it to work safely / properly.
If you don't use your old classic much and drive it carefully you may be ok for 10,000 - 15,000
miles or more with lead memory - the coating of metallic lead on the valve seats can last a long time. Just watch the valve clearances carefully.
Be careful though, the bastards reduced the lead levels in 4 star to way below the levels needed to protect the engine long before we went "Unleaded". You may have less lead memory than you think, And don't do a decoke.
Cassettes? making a comeback, I'm told - just like gramophone records!
If your light fixtures for some reason insists on incandescents..
Well, the technology's slowly getting there. Compact mercury vapour fluorescents were a dead loss from he beginning, but fluorescent leds are showing promise, Apart from the lousy colour rendering and eye strain caused by peaky line spectra. Largely curable but at a serious loss in efficiency.
The only light fixtures having problems with leds at the moment seem to be 12V dichroic tungsten replacements, where it's really the "fault" of the transformers being asked to operate outside their ratings on too low a wattage, led lamps to replace 150W and 200W gls lamps and replacements for 300W 500W and 1000W linear Halogens.
It's interesting to see the marketing landgrab here. Fittings without replacable lamps. Factor in the cost of a new fitting and the sparks to change it and cost savings don't look so rosy.
Progress - Bah. We need an internet connected digital candle icon. Spherical, of course, with a B22 base. None of yer Edison Screwups.