No one's telling an LC guy to "upgrade" to 20's. Already agreed that 18" is ideal for so many reasons mentioned here.
Just saying for the LX guys on these forums, the stock 20's is not really a limitation either especially when paired with an upsized tire. Not in the least. Sand? Pfff, it's a Land Cruiser. It's just not a limitation unless one is an extreme rock crawler or baja runner. Street cars are generally neither of those. Though I understand that one may want to look like they are
Again, not for everyone, but plenty of sidewall and rim protection for everything I've done.
Just saying for the LX guys on these forums, the stock 20's is not really a limitation either especially when paired with an upsized tire. Not in the least. Sand? Pfff, it's a Land Cruiser. It's just not a limitation unless one is an extreme rock crawler or baja runner. Street cars are generally neither of those. Though I understand that one may want to look like they are

Again, not for everyone, but plenty of sidewall and rim protection for everything I've done.