My suggestion is that you do what is best for you and not your friend. I am sure your friend means well. But what makes the happy make not make you happy. Thank them for the advice and think about what you would be most comfortable with.
Basically Anna is correct. If you like the first floor apartment and are happy with the price then buy it. In a highrise or even a mid-rise with a good view, higher floors are more desirable. But that is mostly true because of the view. As an appraiser and an agent there is a very small premium in value/price the higher you go. Most buildings also charge additional maintenance for each floor.
But then of coarse there are people who are afraid of heights! They naturally prefer the lower floors.
In the end you may get a little less when you sell in the future. But you should also pay a little less when you buy now. If you need any help finding an apartment contact me. I work in Queens and Nassau counties.
Century21 Yve R.E.
Licensed R.E. Agent
NYS Certified Residential Appraiser