Oh yeah, senq does offer that. I've not renewed my membership for long time. But you change iPhone almost every year? 
Welcome, aztechx. Since you plan to use a long time, maybe you can consider getting the 128gb storage regardless if it is i7 or i7+.

If you're coming from 4S, then the 7 will probably feel the most comfortable in your hands and pockets. The Plus version takes some time to get used to. I went from iPhone 4 to iPhone 5, then defected to Note 3, and went back to iPhone 6 Plus, so the jump from Note 3 to iPhone 6 Plus wasn't that bad, but from iPhone 5 to the Note 3, it took some time to adjust to not being able to sit comfortable for prolonged period with the phone in your pocket especially when you're wearing jeans - particularly when you're driving. Also, the ability to operate the phone comfortably using one hand is something you will miss with the Plus size. But other than that, the Plus is a must for me, not for the camera or screen estate, but more because of the battery life.

I had almost the same experience, sold my ip5 after getting Note 3 but later get another 5s before selling my Note 3 and 5s to change to 6+, now I am still with 6s+ waiting for 7+. Being a guy has the advantage of having bigger pocket than the lady, the trick of owning 5.5" iPhone is don't ever get thick casing, get a full protection of casing from scratch is good enough for me, having thin case of 5.5" iPhone will make it so much easier to hold than thick casing. For e.g. my Spigen airskin is so much nicer to hold than Spigen liquid crystal casing.

Too bad your 4s screen broken, else you can consider selling it, I did sell 2 iPhone 4 of my parents' few months back and get them new 5s, so much better even 5s in iOS9. Their iPhone 4 in iOS 7 are driving me crazy in getting the latest apps to work. The good part each iPhone 4 can get back RM400 which is not bad for a phone that is 5 years old.

It probably take you few weeks to not get use to 5.5", you won't be bother 4.7" after having it for few weeks.

same boat, high 5!