Your rent is going to go up every year while your mortgage is mostly fixed. If your rent increases 5%/year for 5 years, your $2260 rent is now $2880. Your mortgage payment may increase a little if property tax or insurance goes up, but not nearly that much.
Can you check with the lessor on the history of rent increases? I've been renting the same place for about 5 years now and our rent hasn't gone up a cent. And our landlord has spent $$$ making improvements to the place that have decreased our utility costs since we moved in. And we bargained to do some exterior maintenance on our own to bring the rent down when we signed the lease, but we are no longer required to do it. I suspect we may be in the minority with our "luck" as renters, but it's worth asking "What kind of annual increases in rent have you historically used?"
It's hard to put a value on being able to call up your landlord with a property problem and not have to worry about it. Like "the fridge died" or "a kid across the street sent a bb through the porch sliding glass door" or "the toilet had a containment issue while we were on vacation!" All those things cost us zero dollars to deal with because we are renters. If we owned the place, we probably would not have put out $10K for the heating system conversion from oil to gas, because the payback period is quite a while. As renters, the payback was immediate. And we would have had to spend hundreds on each of those issues I mentioned, but as renters, our cost was zero. This is definitely a big factor for me in deciding to continue renting. Less about the $$ and more about the weight off my shoulders in maintaining a home.
Sorry, I'm trying not to make this into another general buy v. rent debate. But like others have mentioned, it depends on a lot of factors.