The Magpies had a productive window, but were unable to secure the services of Leeds United forward Jack Harrison, and failed in their pursuit of Leicester City's James Maddison.
Howe's side were also left frustrated after loan approaches for West Hamdefender Harrison Ashby andArsenal Advertisement
starAinsley Maitland-Niles failed to materialise.
The Newcastle boss gave his thoughts when being quizzed on whether domestic clubs saw his side as a threat.
"That's true, I would say so," he said.
"That was definitely something we felt in the market. Domestic clubs didn't want to be seen to be helping us. We'll have to take that, that is part of where we are at the moment.
"We have certainly found there is no one there ready to do us a favour. It's the narrative regarding us that has changed.
"If there is anything domestically, teams will put their price up if it is Newcastle. That is the same around the world, that is something we are having to deal with.
"That is why we have walked away from a few deals because I think it is important we are not seen as that club that will pay what is asked. I think it has to be fair.
"There is a real feeling of us internally knowing we are against everybody else. That is healthy and I would embrace that. I would say we couldn't be more together at the moment."
Having signed four new stars this summer, Newcastle spent £115million, taking their total investments to over £200million, including January arrivals.
Howe admitted his side has spent more than they wished and financial fair play made it very difficult.
"FFP definitely was a big hurdle for us to deal with this transfer window," he added.
"We have gone over the guidelines given. I'm not sure whether it has affected future budgets, that's not for me to answer. But we have slightly exceeded where we wanted to be."