There are advantages as well as disadvantages for switching from H0 to N. And perhaps there are some facts about yourself to consider. I'll try to list some random thoughts:
Size is obviously the main advantage of N: You're right, you can build a 'bigger' layout in the same space. Since N scale (1:160) is about half as big as H0 (1:87) you could cram about four times as many tracks into the same space. So you could say that a 4'x8' in N could be compared to a 8'x16' in H0.
BUT: IMO the real advantage is that in N scale you can build more scenery in the same space. Instead of switching from a H0 spaghetti bowl layout to an N scale spaghetti bowl, many N gaugers use the additional space to lay track through a believable scenery.
Health: Another point to consider: How old are you? For older fellows (like me), worsening eyesight and/or clumsiness might strongly advise against N scale. However when you are still young, this isn't a real issue.
Model building: Do you want to build models from kits or even from scratch? Then H0 has the advantage that you can buy much more detailing parts (like Cal-Scale loco parts) than for N models. And of course it is more difficult to add tiny details to a much smaller model.
Prices: When you compare prices, it seems that high quality N scale stuff isn't much cheaper than H0. Looking at the low-price (and low quality

) stuff, H0 might even be cheaper than N! So it really depends on how much you could gain from selling you H0 material...
I for myself went the other way around: I had roughly a 4'x8' space at my disposal and I started with an N scale layout. But I based the track plan on a 4'x8'
H0 layout in the Kalmbach book '101 Track Plans'. Ok, I added a few more sidings, but generally I had the same track layout and thus the same operational possibilities. But there was much more room for adding scenery (which is what I like most). You can look at some pics of the old Trim Creek Southern layout at my
website.
Then I started scratchbuilding and kitbashing rolling stock - in N scale. When I had to dismantle the layout I decided to switch to H0n30 because of the availabilty of detailing parts. This way I still could use all the salvaged N scale track from the old layout plus trucks and loco mechanisms. (Years later I made the final switch to H0 and H0n3. Now that H0n30 suddenly is blooming again, I'm not quite sure if I made the right decision.

)
Just a few thoughts, Ozzie - I only hope I didn't make you still more insecure.


Ron