I have always thought that was a gamble not worth taking, and it is even more risky in this time of rising interest rates. 

You just don't know if your investments will pay off and that is the gamble.

Don't make it too wordy and don't use letters with those transparent material that you can see through to the return address like a lot of spam mail has.

It could appreciate but I consider that gambling.

I remember people making runs on the stores for water, TP, rice, and Spam any time a natural disaster hit or a tsunami was forecasted. 

Beyond that... yeah, it's a gamble.

Don't get me wrong; there are plenty of issues/problems/quirks that old houses have that new houses don't, and an old house can obviously have hidden problems and big repair/maintenance bills too--which is why thorough due diligence is fundamental to REI...but, the point is: a brand new house is not a foolproof solution to repairs/maintenance headaches (and in some cases, a brand new house can be a much bigger gamble than an older house).This is a particularly important lesson for inexperienced investors, who tend to be the most prone to "shiny object syndrome" (the tendency to let nice aesthetics distract from real, underlying issues).

Without that you really have no idea what the tenant is like, so its a big gamble. 

I know I know gambling right .. 

Plus, tenants who know how to connect too well and take advantage of the bandwidth.Plus, there could even be a little potential liability.... in what they download, if they send spam or have a virus that sends spam, and perhaps even if you don't provide a secure network.