i dont need my full node (which i use purely for validating my own transactions) to run on a rPi, but it at least needs to be able to run on a (probably beefy) commodity computer and be able to sync from scratch in a reasonable time. so i dont mind needing a 3-4k (or even 10k) computer to run a node purely for my own verification, but once you need business class internet and seriously potent server gear thats when i have issues. i will need to trust other nodes at that point. SPV clients have thier place but not as my main check for my transactions and balances. i suppose spinning up AWS type stuff for a personal verification node is a possibility but that seems drastic and likely expensive plus i like my gear in house.
You don't need 3k computer to run a node. You can easily get refurbished workstations for under $200 that will have enough cores and processing power, at least 16 GB RAM, and you can add either a brand new SSD or even a spinning platter and it will sync fine from scratch given a little time. After it has sync'd, it will stay in sync for several years or decades.
Enterprises need bigger hardware on their nodes because they perform other functions and act as part of the wallet, like gaming sites or exchanges. For personal usage, any brand new laptop I can find under $300 will probably work (not including Chromebooks).
edit: slow and steady. this is Prod after all. i like my coin STABLE. let the alts blow up their blockchains. believe me its nice to have paper wallets from 2011 that are as safe and usable as the day i printed them. cant say that for a lot (likely most) shitcoins from back in the day, or even more recent ones.
If you are still using paper wallets from 2011, I would suggest you upgrade to current address formats of today, like ones starting with bc1qxxxxx instead of those starting with 1xxxx. They're reasonably safe today. I've seen someone move 40k BTC from a legacy address to a segwit address, it's still there.
Oh, and BTW, there are at least two Big BlockTM live "versions" of Bitcoin: BCH (a.k.a. Bcash LOL) and BSV (CSW's creation).
There is at least one other thing different about those big block coins vs Bitcoin, they intentionally took out SegWit when they forked.
It would have been interesting to see if they took BTC as is and only added bigger blocks, but that's not what they did, so here we are and the market has spoken.