I never used any premium tanks either (well, except for the beta gift Sherman, the M3 Stuart gift and the pre-order A-32, all of which I sold in the first week of release). I don’t have any issues with someone buying a Lowe, I haven’t bought any premium tank myself because I wouldn’t enjoy driving them - either too slow or the guns are too weak.
But I really don’t understand the “tier 6” limitation. Stopping short of tier 7 heavies and TDs I can understand, again due to high ammo costs, but not tier 7 mediums.
The tier 7 T20 is my current money maker, for example. Even if I die, with the tank completely destroyed, it costs me a mere 8k to repair. Another 4-5k for ammo, if I died late, 1-2k if I died early. The tank earns 30-60k per battle with premium, which is 20-40k without premium.
Even with a full repair cost and very high ammo expenditures, you’re still left with 7-23k profit without premium. Minus any consumable expenditures, which usually run me 3k per battle, even on a bad to mediocre game, you’re still breaking even at the very least. On a decent to good game, you’re earning a good amount of credits.
My Pershing would break even in the same mediocre games and turn a profit in decent to good ones. It cost 14k to repair when fully destroyed, which happens infrequently. Mostly my repair costs were in the 6-10k range, with ammo costs slightly higher than the T20 (due to higher ROF on its 90mm, so more shots taken).
Driving a T-44/122, on the other hand, is guaranteed to make very little money on a good game or lose money on a bad one, if you don’t run premium, due to 1k ammo cost.
On the other hand, there are tier 6 vehicles that will readily lose you money. SU-100 with the 122mm gun uses 1k ammo. KV-1S uses 1k ammo as well. And I see plenty of people in a KV-3 that use the 122mm guns.
But tier 6 tanks like the VK series, the US M6 heavy or the T-34/85, etc, these make good money, again due to low ammo cost for their best guns, not necessarily due to their tier. After all, one can run a T29 with the 90mm gun or an IS-2 with a 100mm gun (and many do) and turn a profit even on a bad game, because the ammo is so cost effective.
The Tiger, though I hated it, was still very cost effective due to low ammo costs for its guns (though constantly taking penetrating hits did eat into its profit margins). I’ve even seen JagdPanthers run with the 88mm L71 gun for monetary reasons.
The tanks in WoT also all have different “earning coefficients”. Meaning how much of the damage they do translates into credits. Some are higher (Sherman M4 and T20 standout at 1.05 and 0.90 respectively), some lower. Premium tanks usually have a coefficient far above 1.0. This also contributes to which tank make a good earner.
So, I’m not really sure why I’m supposed to be smoking something, when my experience (which, between the beta and release clocks in at over 11,000 battles) taught me that the primary factor in earning potential is ammo cost as compared to damage dealt. The secondary factor is repair cost (shouldn’t be too high, which is why tier 9 mediums are hard to run without premium). And the third factor is mobility, as you can’t do damage, and thus can’t earn money, if you constantly miss opportunities to do so by virtue of being too bloody slow.
Medium tanks excel in all these factors, which is why they are possible to operate without premium quite comfortably up to tier 8.
As for the people that have to run low tier vehicles to support their higher tier ones, I wouldn’t be surprised if they were driving heavies, TDs or tier 9 mediums. Yes, in such a case, it makes perfect sense, as one cannot comfortably run these vehicles without premium or low tier earners. But as I keep trying to point out, that isn’t the case for medium tanks, which can be run without premium quite comfortably in tiers 1-8. It’s only tier 9s that are trouble, again, because the ammo cost jumps from 250 credits a shot to 1000 credits a shot. While maximum repair cost goes from 14k to 18k.