This is NOT a which-has-better-sound, tone...etc. cork-sniffer post. We are seeing a lot of really cool modeling amps like the Yamaha THR Wireless Series, Boss Katana Air 2 and now the new Positive Grid Spark. These are amazing for the year 2020, but how will they hold up in terms of technology obsolescence in ten or twenty years. A 51 year old properly serviced Fender or Marshall tube amp from 1969 is still very usable, but will that be the case for today's modeling amps down the road? I only ask because we already see other technology released 7-12 years ago, like the ubiquitous iPhones and Android phones becoming 'bricks' because Apple and Samsung will no longer provide software support (because they say the 'hardware can't handle it), and these phones cost a LOT of money. I know a properly serviced Fender Princeton or MESA Boogie will function in 2030, but what about modeling amps with ever-growing software complexity & sophistication in software in 2030 or 2035 that today's hardware can't or won't support down the road?