Wren 44 + 1.2 litres of juice = affordable (for me) models and fuel bills, you can use ordinary servos and the model size suits my model building and storing facilities, car, and normal club flying site 3 miles from home which is available every day of the week. My "other" jet flying site which suits larger models is 70 miles away and available weekends only.
Not everyone on this forum is rich enough or sponsored enough or mesmerized by size enough to own and fuel huge jets and drive a hundred miles each way to fly. There's a definite hole in the market needing filling with more small sport and sport-scale turbine jets of the size which used to be .90 ICDF powered. 11S-12S lipo EDF models the same size as those suiting .90 ICDF/Wren 44 are OK, but after 18 months of limited-life lipos and all that battery charging, I left EDF and found the 44 Gold to be such a superior solution in that size model that I'm now the happy owner of three of those li'l turbine gems.
YMMV. Just build and fly what you like best, but for goodness sake don't stop anyone from producing the smaller jet kits
A new range of small turbine powered models based on original .90-size icdf kits is soon to be released:
http://www.rcmf.co.uk/4um/index.php/topic,94424.0.html
Gordon
Edit. I've just voted and looked at the poll, and 34% want more smaller models. If that figure reflected the opinion of the jet community at large, surely it would be a sizeable enough market for the regular kit manufacturers to get into.