IMHO, the two terms will overlap. I'd guess it just happens where you are in the general scheme of things. Right now I'm a collector, pure & simple. However... Shed building starts this year... Once that happens, goodbye keyboard, hello layout.
I'm collected out about now. The limit has arrived. I'm not blind to anything new, but it will have to 'grab' me. The new Collet suburbans are a no-brainer, just like the Peckett 6-wheeler. Past that... Well, really? There are some items I've publicly said "I'll have that", and I'll stand to my word.
By the same token, some models have missed the boat. It's not the fault of the producers, it's just where the demographic has changed. Larger producers will cotton onto this, and by & large, the collector will become the more prominent segment of the hobby.
Competition in the market? Yes, certainly. If I was in the production game, I'd be worried about a new entrant on the market, who can (and will) undercut the competition with equal quality & fidelity. Every time a percentage increase arrives, so does the attractiveness of the market. Gate prices are an open secret to those in the know, and many the time I've been to a meeting where the chief exec asks "What can we make this for?" There's an awful lot of low hanging fruit...
Happy modelling (or, collecting),
Ian.