I was just discussing the cost savings via LionChief Plus with Bob Severin of this forum, when I began to ponder my budget for trains.
Here is an example of how I budget, and I would be interested to see yours:
1) Limit purchase cost of 4-car passenger car sets to no more than $200, for 60' or 72' cars only.
This means products by Williams and sometimes MTH Rail King
2) Limit motive power Diesel purchase cost for an AA set to no more than $475.
This usually means Lionel Legacy F-3 AA sets or similar, including any Williams, some MTH Rail King and maybe some Premier.
3) Steam purchases = N/A
I already have the steamers I want that were purchased before I had a budget! lol
4) Building purchases are each limited to $50
5) Command and Control = N/A
I already own two MTH DCS and one Lionel Legacy system
6)Purchase ONLY new MIB items, with the exception of vintage post war Lionel
7)Utilize only select dealers that do not charge me state sales tax, have good prices, have discounts and/or free shipping, but MUST have a good reputation.
Poor reputations will cause even a good price to be ignored.
8)Exceptions to the above rules - If I find a really good deal I will make the purchase, even if it breaks the above cost constraints.
A really good deal for me is finding something at least 25% lower than what I usually find it for.
NOTE: I broke these rules recently when I purchased the Lionel TMCC SP Oil Can/Tank Train Set, which includes 6 cars and 2 powered SD40-2T engines.
The reason was, I thought it was a Legacy set, and thus would have been a good buy.
Because of my error, I purchased a new TMCC version of this set albiet which has more cars and engines, but at the usual retail price, BUT which was still a few hundred dollars less than what others were selling it for, and in one case several hundred dollars less.