Yes, campaigning is exhausting and expensive. The candidates spend all their focus and energy on the campaign trail. They require constant fundraising in order to keep going. It's time to put limits on campaigns. Everyone should just campaign once in each state, and a monetary limit should be set because right now, it seems like a huge waste of money.
I think there's a ridiculous amount of time and money that goes into campaigning. I'm not sure how much it actually has an impact on voters or on attracting undecided voters. There's a lot of excess involved especially when you consider the costs. If you're an elected official, how much can you really get done for your constituents if all you're doing is travelling to campaign?
This is part of the sacrifice they make when they decide to run for office. They need to find some way to reach the people who are going to vote for them. While the internet makes it possible for them to reach more voters than before, in person meet and greets are still important.
Candidates for President and Vice President are expected to travel extensively in order to get their message to the voters. Although political campaigns do not technically require a lot of travel, in order to have a chance of winning an election travel is mandatory. It is necessary for candidates to meet and speak to as many people as possible.