Critique this Movement Mechanic

Thanks for the replies so far. I thought I'd add a little more information about the game in case it might encourage more discussion.

The greater part of the game is an economic system. Each player controls one pawn (your "entrepreneur"), which moves around using the mechanic in the original post. The purpose of moving around the game board is to collect materials, which sets the stage for scarcity and valuation of those materials in a market. This is somewhat like the resource market in Power Grid, only in reverse. Instead of the market determining the cost to acquire a resource (which in my design come freely as a result of movement), the market determines the value of the materials at a point in time.

These resources are then sold to "factories" (for market value) that use them to produce "tools" - the very same tools that each player must purchase in order to increase his movement capabilities, which is directly related to his ability to acquire materials and affect the market.

I'd like to clarify how I see the movement phase working. Starting with the space his entrepreneur currently occupies, he begins laying down his tool counters along his desired path of movement. Each counter must match the border it is designed to cross. When all counters are placed, or the desired destination is reached, the player moves his entrepreneur, collects materials from the market that match the spaces along his path, and finally retrieves his tools from the board.

The placement of the tool counters before moving the entrepreneur accomplishes several things. It establishes the route, ensures that the entrepreneur does not travel to an inaccessible location, indicates which materials will be collected and prevents the entrepreneur from re-entering the same space along the path.

So, you can see how the movement mechanic is tightly integrated with the economic system. I don't feel that I can easily yank it out without destroying the whole concept (or at least turning it into something terribly mundane) - but I'm wondering how it can be streamlined. I just don't want it to interfere or detract too much from the greater part of the game.

I'm leaning toward a typical rotating turn structure split into a few steps. I'm not yet decided if movement will be something you'd do on every turn, or if you'd have to choose movement from a short list of available actions.

The resources come from a market, like the market in Power Grid. As a resource becomes scarce in the market, its value increases (unlike Power Grid, where its cost increases).

I do want resources to occasionally be depleted completely, as this is what will cause the maximum value in the market, and hence the maximum cash bonus when a player sells them to a factory.

I intend to have a rule to prevent resource hoarding from being a game-winning strategy, although I want hoarding to be effective to a point. This rule may simply be a limit on the total number of resource a player can hold at one time.