What a nice-looking camera!
Unlike some others here, my progression was 35mm - 6x4.5 - 5x7" - 4x5", and now branched into 6x6 and 6x9 as well (old folders...). My 4x5" monorail is the small portable LF camera, but only compared to the 5x7 Technika.
I'm not ready for 8x10". Yet. My enlarger only takes up to 5x7", which is also big enough for decent contact prints.
But I'm sure I'll get bitten too. Eventually.