1. Will there be a big difference in build quality and feel of the topre switches between NovaTouch and the RealForce 87U ?
Build quality: The Realforce will be a little less rigid because of the way the case comes apart, but they're both ridiculously solid boards with a nice amount of heft. As for feel, 55g Topre is very snappy, but from the Novatouch I've sampled, the domes in the Novatouch are almost snappier than the 55g Topre domes, so if you enjoyed the feeling of the Novatouch, I would suggest just going with that.
2. What color would you choose, white or black? I like white more :D
Personally, I prefer the black. The black legends on charcoal caps look great imo.
3. The 45-gram switch feels quite nice but it seems that many of you guys prefer the 55-gram switch because of the feeling. Is there a big difference between these two in terms of feel? Can you explain the difference in feel?
As I stated in the first question, they both feel very nice and snappy, but the novatouch domes are just a touch snappier. Both feel very similar to an MX clear.
4. Do you think that EK will have sales any time soon or should I order now?
Nope. EK rarely has sales, and only usually has them when they're clearing out inventory.
Novatouch is 45g.
I agree that the Novatouch is snappier than a 55g Realforce, even though it is lighter. I think the perception of snappiness has a lot to do with the sound of the upstroke; it's not actually all in the tactility.
There is not a major quality difference between the two boards. There is a slight one. The Novatouch is probably 90% of the RF, and of course its stock caps are just thin ABS.
The 55g is thockier and more taxing on the fingers. To me it is tiring and 45g is exactly right.
EK will not likely have a sale soon.
I prefer white caps on a black case:Show Image(http://i.imgur.com/iu1L4Gx.jpg)